net: bcmasp: Add support for ASP2.0 Ethernet controller

Add support for the Broadcom ASP 2.0 Ethernet controller which is first
introduced with 72165. This controller features two distinct Ethernet
ports that can be independently operated.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Justin Chen <justin.chen@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

6 files changed, 2779 insertions, 0 deletions

diff --git a/drivers/net/ethernet/broadcom/asp2/Makefile b/drivers/net/ethernet/broadcom/asp2/Makefile
new file mode 100644
index 000000000000..e07550315f83
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_BCMASP) += bcm-asp.o
+bcm-asp-objs := bcmasp.o bcmasp_intf.o bcmasp_ethtool.o
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp.c b/drivers/net/ethernet/broadcom/asp2/bcmasp.c
new file mode 100644
index 000000000000..83494641b545
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp.c
@@ -0,0 +1,696 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Broadcom STB ASP 2.0 Driver
+ *
+ * Copyright (c) 2023 Broadcom
+ */
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/clk.h>
+
+#include "bcmasp.h"
+#include "bcmasp_intf_defs.h"
+
+static void _intr2_mask_clear(struct bcmasp_priv *priv, u32 mask)
+{
+	intr2_core_wl(priv, mask, ASP_INTR2_MASK_CLEAR);
+	priv->irq_mask &= ~mask;
+}
+
+static void _intr2_mask_set(struct bcmasp_priv *priv, u32 mask)
+{
+	intr2_core_wl(priv, mask, ASP_INTR2_MASK_SET);
+	priv->irq_mask |= mask;
+}
+
+void bcmasp_enable_tx_irq(struct bcmasp_intf *intf, int en)
+{
+	struct bcmasp_priv *priv = intf->parent;
+
+	if (en)
+		_intr2_mask_clear(priv, ASP_INTR2_TX_DESC(intf->channel));
+	else
+		_intr2_mask_set(priv, ASP_INTR2_TX_DESC(intf->channel));
+}
+EXPORT_SYMBOL_GPL(bcmasp_enable_tx_irq);
+
+void bcmasp_enable_rx_irq(struct bcmasp_intf *intf, int en)
+{
+	struct bcmasp_priv *priv = intf->parent;
+
+	if (en)
+		_intr2_mask_clear(priv, ASP_INTR2_RX_ECH(intf->channel));
+	else
+		_intr2_mask_set(priv, ASP_INTR2_RX_ECH(intf->channel));
+}
+EXPORT_SYMBOL_GPL(bcmasp_enable_rx_irq);
+
+static void bcmasp_intr2_mask_set_all(struct bcmasp_priv *priv)
+{
+	_intr2_mask_set(priv, 0xffffffff);
+	priv->irq_mask = 0xffffffff;
+}
+
+static void bcmasp_intr2_clear_all(struct bcmasp_priv *priv)
+{
+	intr2_core_wl(priv, 0xffffffff, ASP_INTR2_CLEAR);
+}
+
+static void bcmasp_intr2_handling(struct bcmasp_intf *intf, u32 status)
+{
+	if (status & ASP_INTR2_RX_ECH(intf->channel)) {
+		if (likely(napi_schedule_prep(&intf->rx_napi))) {
+			bcmasp_enable_rx_irq(intf, 0);
+			__napi_schedule_irqoff(&intf->rx_napi);
+		}
+	}
+
+	if (status & ASP_INTR2_TX_DESC(intf->channel)) {
+		if (likely(napi_schedule_prep(&intf->tx_napi))) {
+			bcmasp_enable_tx_irq(intf, 0);
+			__napi_schedule_irqoff(&intf->tx_napi);
+		}
+	}
+}
+
+static irqreturn_t bcmasp_isr(int irq, void *data)
+{
+	struct bcmasp_priv *priv = data;
+	struct bcmasp_intf *intf;
+	u32 status;
+
+	status = intr2_core_rl(priv, ASP_INTR2_STATUS) &
+		~intr2_core_rl(priv, ASP_INTR2_MASK_STATUS);
+
+	intr2_core_wl(priv, status, ASP_INTR2_CLEAR);
+
+	if (unlikely(status == 0)) {
+		dev_warn(&priv->pdev->dev, "l2 spurious interrupt\n");
+		return IRQ_NONE;
+	}
+
+	/* Handle intferfaces */
+	list_for_each_entry(intf, &priv->intfs, list)
+		bcmasp_intr2_handling(intf, status);
+
+	return IRQ_HANDLED;
+}
+
+void bcmasp_flush_rx_port(struct bcmasp_intf *intf)
+{
+	struct bcmasp_priv *priv = intf->parent;
+	u32 mask;
+
+	switch (intf->port) {
+	case 0:
+		mask = ASP_CTRL_UMAC0_FLUSH_MASK;
+		break;
+	case 1:
+		mask = ASP_CTRL_UMAC1_FLUSH_MASK;
+		break;
+	case 2:
+		mask = ASP_CTRL_SPB_FLUSH_MASK;
+		break;
+	default:
+		/* Not valid port */
+		return;
+	}
+
+	rx_ctrl_core_wl(priv, mask, priv->hw_info->rx_ctrl_flush);
+}
+
+static void bcmasp_addr_to_uint(unsigned char *addr, u32 *high, u32 *low)
+{
+	*high = (u32)(addr[0] << 8 | addr[1]);
+	*low = (u32)(addr[2] << 24 | addr[3] << 16 | addr[4] << 8 |
+		     addr[5]);
+}
+
+static void bcmasp_set_mda_filter(struct bcmasp_intf *intf,
+				  const unsigned char *addr,
+				  unsigned char *mask,
+				  unsigned int i)
+{
+	struct bcmasp_priv *priv = intf->parent;
+	u32 addr_h, addr_l, mask_h, mask_l;
+
+	/* Set local copy */
+	ether_addr_copy(priv->mda_filters[i].mask, mask);
+	ether_addr_copy(priv->mda_filters[i].addr, addr);
+
+	/* Write to HW */
+	bcmasp_addr_to_uint(priv->mda_filters[i].mask, &mask_h, &mask_l);
+	bcmasp_addr_to_uint(priv->mda_filters[i].addr, &addr_h, &addr_l);
+	rx_filter_core_wl(priv, addr_h, ASP_RX_FILTER_MDA_PAT_H(i));
+	rx_filter_core_wl(priv, addr_l, ASP_RX_FILTER_MDA_PAT_L(i));
+	rx_filter_core_wl(priv, mask_h, ASP_RX_FILTER_MDA_MSK_H(i));
+	rx_filter_core_wl(priv, mask_l, ASP_RX_FILTER_MDA_MSK_L(i));
+}
+
+static void bcmasp_en_mda_filter(struct bcmasp_intf *intf, bool en,
+				 unsigned int i)
+{
+	struct bcmasp_priv *priv = intf->parent;
+
+	if (priv->mda_filters[i].en == en)
+		return;
+
+	priv->mda_filters[i].en = en;
+	priv->mda_filters[i].port = intf->port;
+
+	rx_filter_core_wl(priv, ((intf->channel + 8) |
+			  (en << ASP_RX_FILTER_MDA_CFG_EN_SHIFT) |
+			  ASP_RX_FILTER_MDA_CFG_UMC_SEL(intf->port)),
+			  ASP_RX_FILTER_MDA_CFG(i));
+}
+
+/* There are 32 MDA filters shared between all ports, we reserve 4 filters per
+ * port for the following.
+ * - Promisc: Filter to allow all packets when promisc is enabled
+ * - All Multicast
+ * - Broadcast
+ * - Own address
+ *
+ * The reserved filters are identified as so.
+ * - Promisc: (index * 4) + 0
+ * - All Multicast: (index * 4) + 1
+ * - Broadcast: (index * 4) + 2
+ * - Own address: (index * 4) + 3
+ */
+enum asp_rx_filter_id {
+	ASP_RX_FILTER_MDA_PROMISC = 0,
+	ASP_RX_FILTER_MDA_ALLMULTI,
+	ASP_RX_FILTER_MDA_BROADCAST,
+	ASP_RX_FILTER_MDA_OWN_ADDR,
+	ASP_RX_FILTER_MDA_RES_MAX,
+};
+
+#define ASP_RX_FILT_MDA(intf, name)	(((intf)->index * \
+					  ASP_RX_FILTER_MDA_RES_MAX) \
+					 + ASP_RX_FILTER_MDA_##name)
+
+static int bcmasp_total_res_mda_cnt(struct bcmasp_priv *priv)
+{
+	return list_count_nodes(&priv->intfs) * ASP_RX_FILTER_MDA_RES_MAX;
+}
+
+void bcmasp_set_promisc(struct bcmasp_intf *intf, bool en)
+{
+	unsigned int i = ASP_RX_FILT_MDA(intf, PROMISC);
+	unsigned char promisc[ETH_ALEN];
+
+	eth_zero_addr(promisc);
+	/* Set mask to 00:00:00:00:00:00 to match all packets */
+	bcmasp_set_mda_filter(intf, promisc, promisc, i);
+	bcmasp_en_mda_filter(intf, en, i);
+}
+
+void bcmasp_set_allmulti(struct bcmasp_intf *intf, bool en)
+{
+	unsigned char allmulti[] = {0x01, 0x00, 0x00, 0x00, 0x00, 0x00};
+	unsigned int i = ASP_RX_FILT_MDA(intf, ALLMULTI);
+
+	/* Set mask to 01:00:00:00:00:00 to match all multicast */
+	bcmasp_set_mda_filter(intf, allmulti, allmulti, i);
+	bcmasp_en_mda_filter(intf, en, i);
+}
+
+void bcmasp_set_broad(struct bcmasp_intf *intf, bool en)
+{
+	unsigned int i = ASP_RX_FILT_MDA(intf, BROADCAST);
+	unsigned char addr[ETH_ALEN];
+
+	eth_broadcast_addr(addr);
+	bcmasp_set_mda_filter(intf, addr, addr, i);
+	bcmasp_en_mda_filter(intf, en, i);
+}
+
+void bcmasp_set_oaddr(struct bcmasp_intf *intf, const unsigned char *addr,
+		      bool en)
+{
+	unsigned char mask[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+	unsigned int i = ASP_RX_FILT_MDA(intf, OWN_ADDR);
+
+	bcmasp_set_mda_filter(intf, addr, mask, i);
+	bcmasp_en_mda_filter(intf, en, i);
+}
+
+void bcmasp_disable_all_filters(struct bcmasp_intf *intf)
+{
+	struct bcmasp_priv *priv = intf->parent;
+	unsigned int i;
+	int res_count;
+
+	res_count = bcmasp_total_res_mda_cnt(intf->parent);
+
+	/* Disable all filters held by this port */
+	for (i = res_count; i < NUM_MDA_FILTERS; i++) {
+		if (priv->mda_filters[i].en &&
+		    priv->mda_filters[i].port == intf->port)
+			bcmasp_en_mda_filter(intf, 0, i);
+	}
+}
+
+static int bcmasp_combine_set_filter(struct bcmasp_intf *intf,
+				     unsigned char *addr, unsigned char *mask,
+				     int i)
+{
+	struct bcmasp_priv *priv = intf->parent;
+	u64 addr1, addr2, mask1, mask2, mask3;
+
+	/* Switch to u64 to help with the calculations */
+	addr1 = ether_addr_to_u64(priv->mda_filters[i].addr);
+	mask1 = ether_addr_to_u64(priv->mda_filters[i].mask);
+	addr2 = ether_addr_to_u64(addr);
+	mask2 = ether_addr_to_u64(mask);
+
+	/* Check if one filter resides within the other */
+	mask3 = mask1 & mask2;
+	if (mask3 == mask1 && ((addr1 & mask1) == (addr2 & mask1))) {
+		/* Filter 2 resides within filter 1, so everything is good */
+		return 0;
+	} else if (mask3 == mask2 && ((addr1 & mask2) == (addr2 & mask2))) {
+		/* Filter 1 resides within filter 2, so swap filters */
+		bcmasp_set_mda_filter(intf, addr, mask, i);
+		return 0;
+	}
+
+	/* Unable to combine */
+	return -EINVAL;
+}
+
+int bcmasp_set_en_mda_filter(struct bcmasp_intf *intf, unsigned char *addr,
+			     unsigned char *mask)
+{
+	struct bcmasp_priv *priv = intf->parent;
+	int ret, res_count;
+	unsigned int i;
+
+	res_count = bcmasp_total_res_mda_cnt(intf->parent);
+
+	for (i = res_count; i < NUM_MDA_FILTERS; i++) {
+		/* If filter not enabled or belongs to another port skip */
+		if (!priv->mda_filters[i].en ||
+		    priv->mda_filters[i].port != intf->port)
+			continue;
+
+		/* Attempt to combine filters */
+		ret = bcmasp_combine_set_filter(intf, addr, mask, i);
+		if (!ret)
+			return 0;
+	}
+
+	/* Create new filter if possible */
+	for (i = res_count; i < NUM_MDA_FILTERS; i++) {
+		if (priv->mda_filters[i].en)
+			continue;
+
+		bcmasp_set_mda_filter(intf, addr, mask, i);
+		bcmasp_en_mda_filter(intf, 1, i);
+		return 0;
+	}
+
+	/* No room for new filter */
+	return -EINVAL;
+}
+
+static void bcmasp_core_init_filters(struct bcmasp_priv *priv)
+{
+	unsigned int i;
+
+	/* Disable all filters and reset software view since the HW
+	 * can lose context while in deep sleep suspend states
+	 */
+	for (i = 0; i < NUM_MDA_FILTERS; i++) {
+		rx_filter_core_wl(priv, 0x0, ASP_RX_FILTER_MDA_CFG(i));
+		priv->mda_filters[i].en = 0;
+	}
+
+	/* Top level filter enable bit should be enabled at all times, set
+	 * GEN_WAKE_CLEAR to clear the network filter wake-up which would
+	 * otherwise be sticky
+	 */
+	rx_filter_core_wl(priv, (ASP_RX_FILTER_OPUT_EN |
+			  ASP_RX_FILTER_MDA_EN |
+			  ASP_RX_FILTER_GEN_WK_CLR |
+			  ASP_RX_FILTER_NT_FLT_EN),
+			  ASP_RX_FILTER_BLK_CTRL);
+}
+
+/* ASP core initialization */
+static void bcmasp_core_init(struct bcmasp_priv *priv)
+{
+	tx_analytics_core_wl(priv, 0x0, ASP_TX_ANALYTICS_CTRL);
+	rx_analytics_core_wl(priv, 0x4, ASP_RX_ANALYTICS_CTRL);
+
+	rx_edpkt_core_wl(priv, (ASP_EDPKT_HDR_SZ_128 << ASP_EDPKT_HDR_SZ_SHIFT),
+			 ASP_EDPKT_HDR_CFG);
+	rx_edpkt_core_wl(priv,
+			 (ASP_EDPKT_ENDI_BT_SWP_WD << ASP_EDPKT_ENDI_DESC_SHIFT),
+			 ASP_EDPKT_ENDI);
+
+	rx_edpkt_core_wl(priv, 0x1b, ASP_EDPKT_BURST_BUF_PSCAL_TOUT);
+	rx_edpkt_core_wl(priv, 0x3e8, ASP_EDPKT_BURST_BUF_WRITE_TOUT);
+	rx_edpkt_core_wl(priv, 0x3e8, ASP_EDPKT_BURST_BUF_READ_TOUT);
+
+	rx_edpkt_core_wl(priv, ASP_EDPKT_ENABLE_EN, ASP_EDPKT_ENABLE);
+
+	/* Disable and clear both UniMAC's wake-up interrupts to avoid
+	 * sticky interrupts.
+	 */
+	_intr2_mask_set(priv, ASP_INTR2_UMC0_WAKE | ASP_INTR2_UMC1_WAKE);
+	intr2_core_wl(priv, ASP_INTR2_UMC0_WAKE | ASP_INTR2_UMC1_WAKE,
+		      ASP_INTR2_CLEAR);
+}
+
+static void bcmasp_core_clock_select(struct bcmasp_priv *priv, bool slow)
+{
+	u32 reg;
+
+	reg = ctrl_core_rl(priv, ASP_CTRL_CORE_CLOCK_SELECT);
+	if (slow)
+		reg &= ~ASP_CTRL_CORE_CLOCK_SELECT_MAIN;
+	else
+		reg |= ASP_CTRL_CORE_CLOCK_SELECT_MAIN;
+	ctrl_core_wl(priv, reg, ASP_CTRL_CORE_CLOCK_SELECT);
+}
+
+static void bcmasp_core_clock_set_ll(struct bcmasp_priv *priv, u32 clr, u32 set)
+{
+	u32 reg;
+
+	reg = ctrl_core_rl(priv, ASP_CTRL_CLOCK_CTRL);
+	reg &= ~clr;
+	reg |= set;
+	ctrl_core_wl(priv, reg, ASP_CTRL_CLOCK_CTRL);
+
+	reg = ctrl_core_rl(priv, ASP_CTRL_SCRATCH_0);
+	reg &= ~clr;
+	reg |= set;
+	ctrl_core_wl(priv, reg, ASP_CTRL_SCRATCH_0);
+}
+
+static void bcmasp_core_clock_set(struct bcmasp_priv *priv, u32 clr, u32 set)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->clk_lock, flags);
+	bcmasp_core_clock_set_ll(priv, clr, set);
+	spin_unlock_irqrestore(&priv->clk_lock, flags);
+}
+
+void bcmasp_core_clock_set_intf(struct bcmasp_intf *intf, bool en)
+{
+	u32 intf_mask = ASP_CTRL_CLOCK_CTRL_ASP_RGMII_DIS(intf->port);
+	struct bcmasp_priv *priv = intf->parent;
+	unsigned long flags;
+	u32 reg;
+
+	/* When enabling an interface, if the RX or TX clocks were not enabled,
+	 * enable them. Conversely, while disabling an interface, if this is
+	 * the last one enabled, we can turn off the shared RX and TX clocks as
+	 * well. We control enable bits which is why we test for equality on
+	 * the RGMII clock bit mask.
+	 */
+	spin_lock_irqsave(&priv->clk_lock, flags);
+	if (en) {
+		intf_mask |= ASP_CTRL_CLOCK_CTRL_ASP_TX_DISABLE |
+			     ASP_CTRL_CLOCK_CTRL_ASP_RX_DISABLE;
+		bcmasp_core_clock_set_ll(priv, intf_mask, 0);
+	} else {
+		reg = ctrl_core_rl(priv, ASP_CTRL_SCRATCH_0) | intf_mask;
+		if ((reg & ASP_CTRL_CLOCK_CTRL_ASP_RGMII_MASK) ==
+		    ASP_CTRL_CLOCK_CTRL_ASP_RGMII_MASK)
+			intf_mask |= ASP_CTRL_CLOCK_CTRL_ASP_TX_DISABLE |
+				     ASP_CTRL_CLOCK_CTRL_ASP_RX_DISABLE;
+		bcmasp_core_clock_set_ll(priv, 0, intf_mask);
+	}
+	spin_unlock_irqrestore(&priv->clk_lock, flags);
+}
+
+static struct bcmasp_hw_info v20_hw_info = {
+	.rx_ctrl_flush = ASP_RX_CTRL_FLUSH,
+	.umac2fb = UMAC2FB_OFFSET,
+	.rx_ctrl_fb_out_frame_count = ASP_RX_CTRL_FB_OUT_FRAME_COUNT,
+	.rx_ctrl_fb_filt_out_frame_count = ASP_RX_CTRL_FB_FILT_OUT_FRAME_COUNT,
+	.rx_ctrl_fb_rx_fifo_depth = ASP_RX_CTRL_FB_RX_FIFO_DEPTH,
+};
+
+static const struct bcmasp_plat_data v20_plat_data = {
+	.hw_info = &v20_hw_info,
+};
+
+static struct bcmasp_hw_info v21_hw_info = {
+	.rx_ctrl_flush = ASP_RX_CTRL_FLUSH_2_1,
+	.umac2fb = UMAC2FB_OFFSET_2_1,
+	.rx_ctrl_fb_out_frame_count = ASP_RX_CTRL_FB_OUT_FRAME_COUNT_2_1,
+	.rx_ctrl_fb_filt_out_frame_count =
+		ASP_RX_CTRL_FB_FILT_OUT_FRAME_COUNT_2_1,
+	.rx_ctrl_fb_rx_fifo_depth = ASP_RX_CTRL_FB_RX_FIFO_DEPTH_2_1,
+};
+
+static const struct bcmasp_plat_data v21_plat_data = {
+	.hw_info = &v21_hw_info,
+};
+
+static const struct of_device_id bcmasp_of_match[] = {
+	{ .compatible = "brcm,asp-v2.0", .data = &v20_plat_data },
+	{ .compatible = "brcm,asp-v2.1", .data = &v21_plat_data },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, bcmasp_of_match);
+
+static const struct of_device_id bcmasp_mdio_of_match[] = {
+	{ .compatible = "brcm,asp-v2.1-mdio", },
+	{ .compatible = "brcm,asp-v2.0-mdio", },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, bcmasp_mdio_of_match);
+
+static void bcmasp_remove_intfs(struct bcmasp_priv *priv)
+{
+	struct bcmasp_intf *intf, *n;
+
+	list_for_each_entry_safe(intf, n, &priv->intfs, list) {
+		list_del(&intf->list);
+		bcmasp_interface_destroy(intf);
+	}
+}
+
+static int bcmasp_probe(struct platform_device *pdev)
+{
+	struct device_node *ports_node, *intf_node;
+	const struct bcmasp_plat_data *pdata;
+	struct device *dev = &pdev->dev;
+	struct bcmasp_priv *priv;
+	struct bcmasp_intf *intf;
+	int ret = 0, count = 0;
+	unsigned int i;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->irq = platform_get_irq(pdev, 0);
+	if (priv->irq <= 0)
+		return dev_err_probe(dev, -EINVAL, "invalid interrupt\n");
+
+	priv->clk = devm_clk_get_optional_enabled(dev, "sw_asp");
+	if (IS_ERR(priv->clk))
+		return dev_err_probe(dev, PTR_ERR(priv->clk),
+				     "failed to request clock\n");
+
+	/* Base from parent node */
+	priv->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(priv->base))
+		return dev_err_probe(dev, PTR_ERR(priv->base), "failed to iomap\n");
+
+	ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(40));
+	if (ret)
+		return dev_err_probe(dev, ret, "unable to set DMA mask: %d\n", ret);
+
+	dev_set_drvdata(&pdev->dev, priv);
+	priv->pdev = pdev;
+	spin_lock_init(&priv->mda_lock);
+	spin_lock_init(&priv->clk_lock);
+	INIT_LIST_HEAD(&priv->intfs);
+
+	pdata = device_get_match_data(&pdev->dev);
+	if (!pdata)
+		return dev_err_probe(dev, -EINVAL, "unable to find platform data\n");
+
+	priv->hw_info = pdata->hw_info;
+
+	/* Enable all clocks to ensure successful probing */
+	bcmasp_core_clock_set(priv, ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE, 0);
+
+	/* Switch to the main clock */
+	bcmasp_core_clock_select(priv, false);
+
+	bcmasp_intr2_mask_set_all(priv);
+	bcmasp_intr2_clear_all(priv);
+
+	ret = devm_request_irq(&pdev->dev, priv->irq, bcmasp_isr, 0,
+			       pdev->name, priv);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to request ASP interrupt: %d", ret);
+
+	/* Register mdio child nodes */
+	of_platform_populate(dev->of_node, bcmasp_mdio_of_match, NULL, dev);
+
+	/* ASP specific initialization, Needs to be done regardless of
+	 * how many interfaces come up.
+	 */
+	bcmasp_core_init(priv);
+	bcmasp_core_init_filters(priv);
+
+	ports_node = of_find_node_by_name(dev->of_node, "ethernet-ports");
+	if (!ports_node) {
+		dev_warn(dev, "No ports found\n");
+		return -EINVAL;
+	}
+
+	i = 0;
+	for_each_available_child_of_node(ports_node, intf_node) {
+		intf = bcmasp_interface_create(priv, intf_node, i);
+		if (!intf) {
+			dev_err(dev, "Cannot create eth interface %d\n", i);
+			bcmasp_remove_intfs(priv);
+			goto of_put_exit;
+		}
+		list_add_tail(&intf->list, &priv->intfs);
+		i++;
+	}
+
+	/* Drop the clock reference count now and let ndo_open()/ndo_close()
+	 * manage it for us from now on.
+	 */
+	bcmasp_core_clock_set(priv, 0, ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE);
+
+	clk_disable_unprepare(priv->clk);
+
+	/* Now do the registration of the network ports which will take care
+	 * of managing the clock properly.
+	 */
+	list_for_each_entry(intf, &priv->intfs, list) {
+		ret = register_netdev(intf->ndev);
+		if (ret) {
+			netdev_err(intf->ndev,
+				   "failed to register net_device: %d\n", ret);
+			bcmasp_remove_intfs(priv);
+			goto of_put_exit;
+		}
+		count++;
+	}
+
+	dev_info(dev, "Initialized %d port(s)\n", count);
+
+of_put_exit:
+	of_node_put(ports_node);
+	return ret;
+}
+
+static int bcmasp_remove(struct platform_device *pdev)
+{
+	struct bcmasp_priv *priv = dev_get_drvdata(&pdev->dev);
+
+	if (!priv)
+		return 0;
+
+	bcmasp_remove_intfs(priv);
+
+	return 0;
+}
+
+static void bcmasp_shutdown(struct platform_device *pdev)
+{
+	bcmasp_remove(pdev);
+}
+
+static int __maybe_unused bcmasp_suspend(struct device *d)
+{
+	struct bcmasp_priv *priv = dev_get_drvdata(d);
+	struct bcmasp_intf *intf;
+	int ret;
+
+	list_for_each_entry(intf, &priv->intfs, list) {
+		ret = bcmasp_interface_suspend(intf);
+		if (ret)
+			break;
+	}
+
+	ret = clk_prepare_enable(priv->clk);
+	if (ret)
+		return ret;
+
+	/* Whether Wake-on-LAN is enabled or not, we can always disable
+	 * the shared TX clock
+	 */
+	bcmasp_core_clock_set(priv, 0, ASP_CTRL_CLOCK_CTRL_ASP_TX_DISABLE);
+
+	bcmasp_core_clock_select(priv, true);
+
+	clk_disable_unprepare(priv->clk);
+
+	return ret;
+}
+
+static int __maybe_unused bcmasp_resume(struct device *d)
+{
+	struct bcmasp_priv *priv = dev_get_drvdata(d);
+	struct bcmasp_intf *intf;
+	int ret;
+
+	ret = clk_prepare_enable(priv->clk);
+	if (ret)
+		return ret;
+
+	/* Switch to the main clock domain */
+	bcmasp_core_clock_select(priv, false);
+
+	/* Re-enable all clocks for re-initialization */
+	bcmasp_core_clock_set(priv, ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE, 0);
+
+	bcmasp_core_init(priv);
+	bcmasp_core_init_filters(priv);
+
+	/* And disable them to let the network devices take care of them */
+	bcmasp_core_clock_set(priv, 0, ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE);
+
+	clk_disable_unprepare(priv->clk);
+
+	list_for_each_entry(intf, &priv->intfs, list) {
+		ret = bcmasp_interface_resume(intf);
+		if (ret)
+			break;
+	}
+
+	return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(bcmasp_pm_ops,
+			 bcmasp_suspend, bcmasp_resume);
+
+static struct platform_driver bcmasp_driver = {
+	.probe = bcmasp_probe,
+	.remove = bcmasp_remove,
+	.shutdown = bcmasp_shutdown,
+	.driver = {
+		.name = "brcm,asp-v2",
+		.of_match_table = bcmasp_of_match,
+		.pm = &bcmasp_pm_ops,
+	},
+};
+module_platform_driver(bcmasp_driver);
+
+MODULE_DESCRIPTION("Broadcom ASP 2.0 Ethernet controller driver");
+MODULE_ALIAS("platform:brcm,asp-v2");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp.h b/drivers/net/ethernet/broadcom/asp2/bcmasp.h
new file mode 100644
index 000000000000..4fe84d26251d
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp.h
@@ -0,0 +1,503 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __BCMASP_H
+#define __BCMASP_H
+
+#include <linux/netdevice.h>
+#include <linux/phy.h>
+#include <linux/io-64-nonatomic-hi-lo.h>
+#include <uapi/linux/ethtool.h>
+
+#define ASP_INTR2_OFFSET			0x1000
+#define  ASP_INTR2_STATUS			0x0
+#define  ASP_INTR2_SET				0x4
+#define  ASP_INTR2_CLEAR			0x8
+#define  ASP_INTR2_MASK_STATUS			0xc
+#define  ASP_INTR2_MASK_SET			0x10
+#define  ASP_INTR2_MASK_CLEAR			0x14
+
+#define ASP_INTR2_RX_ECH(intr)			BIT(intr)
+#define ASP_INTR2_TX_DESC(intr)			BIT((intr) + 14)
+#define ASP_INTR2_UMC0_WAKE			BIT(22)
+#define ASP_INTR2_UMC1_WAKE			BIT(28)
+
+#define ASP_WAKEUP_INTR2_OFFSET			0x1200
+#define  ASP_WAKEUP_INTR2_STATUS		0x0
+#define  ASP_WAKEUP_INTR2_SET			0x4
+#define  ASP_WAKEUP_INTR2_CLEAR			0x8
+#define  ASP_WAKEUP_INTR2_MASK_STATUS		0xc
+#define  ASP_WAKEUP_INTR2_MASK_SET		0x10
+#define  ASP_WAKEUP_INTR2_MASK_CLEAR		0x14
+#define ASP_WAKEUP_INTR2_MPD_0			BIT(0)
+#define ASP_WAKEUP_INTR2_MPD_1			BIT(1)
+#define ASP_WAKEUP_INTR2_FILT_0			BIT(2)
+#define ASP_WAKEUP_INTR2_FILT_1			BIT(3)
+#define ASP_WAKEUP_INTR2_FW			BIT(4)
+
+#define ASP_TX_ANALYTICS_OFFSET			0x4c000
+#define  ASP_TX_ANALYTICS_CTRL			0x0
+
+#define ASP_RX_ANALYTICS_OFFSET			0x98000
+#define  ASP_RX_ANALYTICS_CTRL			0x0
+
+#define ASP_RX_CTRL_OFFSET			0x9f000
+#define ASP_RX_CTRL_UMAC_0_FRAME_COUNT		0x8
+#define ASP_RX_CTRL_UMAC_1_FRAME_COUNT		0xc
+#define ASP_RX_CTRL_FB_0_FRAME_COUNT		0x14
+#define ASP_RX_CTRL_FB_1_FRAME_COUNT		0x18
+#define ASP_RX_CTRL_FB_8_FRAME_COUNT		0x1c
+/* asp2.1 diverges offsets here */
+/* ASP2.0 */
+#define ASP_RX_CTRL_FB_OUT_FRAME_COUNT		0x20
+#define ASP_RX_CTRL_FB_FILT_OUT_FRAME_COUNT	0x24
+#define ASP_RX_CTRL_FLUSH			0x28
+#define  ASP_CTRL_UMAC0_FLUSH_MASK		(BIT(0) | BIT(12))
+#define  ASP_CTRL_UMAC1_FLUSH_MASK		(BIT(1) | BIT(13))
+#define  ASP_CTRL_SPB_FLUSH_MASK		(BIT(8) | BIT(20))
+#define ASP_RX_CTRL_FB_RX_FIFO_DEPTH		0x30
+/* ASP2.1 */
+#define ASP_RX_CTRL_FB_9_FRAME_COUNT_2_1	0x20
+#define ASP_RX_CTRL_FB_10_FRAME_COUNT_2_1	0x24
+#define ASP_RX_CTRL_FB_OUT_FRAME_COUNT_2_1	0x28
+#define ASP_RX_CTRL_FB_FILT_OUT_FRAME_COUNT_2_1	0x2c
+#define ASP_RX_CTRL_FLUSH_2_1			0x30
+#define ASP_RX_CTRL_FB_RX_FIFO_DEPTH_2_1	0x38
+
+#define ASP_RX_FILTER_OFFSET			0x80000
+#define  ASP_RX_FILTER_BLK_CTRL			0x0
+#define   ASP_RX_FILTER_OPUT_EN			BIT(0)
+#define   ASP_RX_FILTER_MDA_EN			BIT(1)
+#define   ASP_RX_FILTER_LNR_MD			BIT(2)
+#define   ASP_RX_FILTER_GEN_WK_EN		BIT(3)
+#define   ASP_RX_FILTER_GEN_WK_CLR		BIT(4)
+#define   ASP_RX_FILTER_NT_FLT_EN		BIT(5)
+#define  ASP_RX_FILTER_MDA_CFG(sel)		(((sel) * 0x14) + 0x100)
+#define   ASP_RX_FILTER_MDA_CFG_EN_SHIFT	8
+#define   ASP_RX_FILTER_MDA_CFG_UMC_SEL(sel)	((sel) > 1 ? BIT(17) : \
+						 BIT((sel) + 9))
+#define  ASP_RX_FILTER_MDA_PAT_H(sel)		(((sel) * 0x14) + 0x104)
+#define  ASP_RX_FILTER_MDA_PAT_L(sel)		(((sel) * 0x14) + 0x108)
+#define  ASP_RX_FILTER_MDA_MSK_H(sel)		(((sel) * 0x14) + 0x10c)
+#define  ASP_RX_FILTER_MDA_MSK_L(sel)		(((sel) * 0x14) + 0x110)
+#define  ASP_RX_FILTER_MDA_CFG(sel)		(((sel) * 0x14) + 0x100)
+#define  ASP_RX_FILTER_MDA_PAT_H(sel)		(((sel) * 0x14) + 0x104)
+#define  ASP_RX_FILTER_MDA_PAT_L(sel)		(((sel) * 0x14) + 0x108)
+#define  ASP_RX_FILTER_MDA_MSK_H(sel)		(((sel) * 0x14) + 0x10c)
+#define  ASP_RX_FILTER_MDA_MSK_L(sel)		(((sel) * 0x14) + 0x110)
+#define  ASP_RX_FILTER_NET_CFG(sel)		(((sel) * 0xa04) + 0x400)
+#define   ASP_RX_FILTER_NET_CFG_CH(sel)		((sel) << 0)
+#define   ASP_RX_FILTER_NET_CFG_EN		BIT(9)
+#define   ASP_RX_FILTER_NET_CFG_L2_EN		BIT(10)
+#define   ASP_RX_FILTER_NET_CFG_L3_EN		BIT(11)
+#define   ASP_RX_FILTER_NET_CFG_L4_EN		BIT(12)
+#define   ASP_RX_FILTER_NET_CFG_L3_FRM(sel)	((sel) << 13)
+#define   ASP_RX_FILTER_NET_CFG_L4_FRM(sel)	((sel) << 15)
+#define   ASP_RX_FILTER_NET_CFG_UMC(sel)	BIT((sel) + 19)
+#define   ASP_RX_FILTER_NET_CFG_DMA_EN		BIT(27)
+
+#define  ASP_RX_FILTER_NET_OFFSET_MAX		32
+#define  ASP_RX_FILTER_NET_PAT(sel, block, off) \
+		(((sel) * 0xa04) + ((block) * 0x200) + (off) + 0x600)
+#define  ASP_RX_FILTER_NET_MASK(sel, block, off) \
+		(((sel) * 0xa04) + ((block) * 0x200) + (off) + 0x700)
+
+#define  ASP_RX_FILTER_NET_OFFSET(sel)		(((sel) * 0xa04) + 0xe00)
+#define   ASP_RX_FILTER_NET_OFFSET_L2(val)	((val) << 0)
+#define   ASP_RX_FILTER_NET_OFFSET_L3_0(val)	((val) << 8)
+#define   ASP_RX_FILTER_NET_OFFSET_L3_1(val)	((val) << 16)
+#define   ASP_RX_FILTER_NET_OFFSET_L4(val)	((val) << 24)
+
+#define ASP_EDPKT_OFFSET			0x9c000
+#define  ASP_EDPKT_ENABLE			0x4
+#define   ASP_EDPKT_ENABLE_EN			BIT(0)
+#define  ASP_EDPKT_HDR_CFG			0xc
+#define   ASP_EDPKT_HDR_SZ_SHIFT		2
+#define   ASP_EDPKT_HDR_SZ_32			0
+#define   ASP_EDPKT_HDR_SZ_64			1
+#define   ASP_EDPKT_HDR_SZ_96			2
+#define   ASP_EDPKT_HDR_SZ_128			3
+#define ASP_EDPKT_BURST_BUF_PSCAL_TOUT		0x10
+#define ASP_EDPKT_BURST_BUF_WRITE_TOUT		0x14
+#define ASP_EDPKT_BURST_BUF_READ_TOUT		0x18
+#define ASP_EDPKT_RX_TS_COUNTER			0x38
+#define  ASP_EDPKT_ENDI				0x48
+#define   ASP_EDPKT_ENDI_DESC_SHIFT		8
+#define   ASP_EDPKT_ENDI_NO_BT_SWP		0
+#define   ASP_EDPKT_ENDI_BT_SWP_WD		1
+#define ASP_EDPKT_RX_PKT_CNT			0x138
+#define ASP_EDPKT_HDR_EXTR_CNT			0x13c
+#define ASP_EDPKT_HDR_OUT_CNT			0x140
+
+#define ASP_CTRL				0x101000
+#define  ASP_CTRL_ASP_SW_INIT			0x04
+#define   ASP_CTRL_ASP_SW_INIT_ACPUSS_CORE	BIT(0)
+#define   ASP_CTRL_ASP_SW_INIT_ASP_TX		BIT(1)
+#define   ASP_CTRL_ASP_SW_INIT_AS_RX		BIT(2)
+#define   ASP_CTRL_ASP_SW_INIT_ASP_RGMII_UMAC0	BIT(3)
+#define   ASP_CTRL_ASP_SW_INIT_ASP_RGMII_UMAC1	BIT(4)
+#define   ASP_CTRL_ASP_SW_INIT_ASP_XMEMIF	BIT(5)
+#define  ASP_CTRL_CLOCK_CTRL			0x04
+#define   ASP_CTRL_CLOCK_CTRL_ASP_TX_DISABLE	BIT(0)
+#define   ASP_CTRL_CLOCK_CTRL_ASP_RX_DISABLE	BIT(1)
+#define   ASP_CTRL_CLOCK_CTRL_ASP_RGMII_SHIFT	2
+#define   ASP_CTRL_CLOCK_CTRL_ASP_RGMII_MASK	(0x7 << ASP_CTRL_CLOCK_CTRL_ASP_RGMII_SHIFT)
+#define   ASP_CTRL_CLOCK_CTRL_ASP_RGMII_DIS(x)	BIT(ASP_CTRL_CLOCK_CTRL_ASP_RGMII_SHIFT + (x))
+#define   ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE	GENMASK(4, 0)
+#define  ASP_CTRL_CORE_CLOCK_SELECT		0x08
+#define   ASP_CTRL_CORE_CLOCK_SELECT_MAIN	BIT(0)
+#define  ASP_CTRL_SCRATCH_0			0x0c
+
+struct bcmasp_tx_cb {
+	struct sk_buff		*skb;
+	unsigned int		bytes_sent;
+	bool			last;
+
+	DEFINE_DMA_UNMAP_ADDR(dma_addr);
+	DEFINE_DMA_UNMAP_LEN(dma_len);
+};
+
+struct bcmasp_res {
+	/* Per interface resources */
+	/* Port */
+	void __iomem		*umac;
+	void __iomem		*umac2fb;
+	void __iomem		*rgmii;
+
+	/* TX slowpath/configuration */
+	void __iomem		*tx_spb_ctrl;
+	void __iomem		*tx_spb_top;
+	void __iomem		*tx_epkt_core;
+	void __iomem		*tx_pause_ctrl;
+};
+
+#define DESC_ADDR(x)		((x) & GENMASK_ULL(39, 0))
+#define DESC_FLAGS(x)		((x) & GENMASK_ULL(63, 40))
+
+struct bcmasp_desc {
+	u64		buf;
+	#define DESC_CHKSUM	BIT_ULL(40)
+	#define DESC_CRC_ERR	BIT_ULL(41)
+	#define DESC_RX_SYM_ERR	BIT_ULL(42)
+	#define DESC_NO_OCT_ALN BIT_ULL(43)
+	#define DESC_PKT_TRUC	BIT_ULL(44)
+	/*  39:0 (TX/RX) bits 0-39 of buf addr
+	 *    40 (RX) checksum
+	 *    41 (RX) crc_error
+	 *    42 (RX) rx_symbol_error
+	 *    43 (RX) non_octet_aligned
+	 *    44 (RX) pkt_truncated
+	 *    45 Reserved
+	 * 56:46 (RX) mac_filter_id
+	 * 60:57 (RX) rx_port_num (0-unicmac0, 1-unimac1)
+	 *    61 Reserved
+	 * 63:62 (TX) forward CRC, overwrite CRC
+	 */
+	u32		size;
+	u32		flags;
+	#define DESC_INT_EN     BIT(0)
+	#define DESC_SOF	BIT(1)
+	#define DESC_EOF	BIT(2)
+	#define DESC_EPKT_CMD   BIT(3)
+	#define DESC_SCRAM_ST   BIT(8)
+	#define DESC_SCRAM_END  BIT(9)
+	#define DESC_PCPP       BIT(10)
+	#define DESC_PPPP       BIT(11)
+	/*     0 (TX) tx_int_en
+	 *     1 (TX/RX) SOF
+	 *     2 (TX/RX) EOF
+	 *     3 (TX) epkt_command
+	 *   6:4 (TX) PA
+	 *     7 (TX) pause at desc end
+	 *     8 (TX) scram_start
+	 *     9 (TX) scram_end
+	 *    10 (TX) PCPP
+	 *    11 (TX) PPPP
+	 * 14:12 Reserved
+	 *    15 (TX) pid ch Valid
+	 * 19:16 (TX) data_pkt_type
+	 * 32:20 (TX) pid_channel (RX) nw_filter_id
+	 */
+};
+
+struct bcmasp_intf;
+
+struct bcmasp_intf_stats64 {
+	/* Rx Stats */
+	u64_stats_t	rx_packets;
+	u64_stats_t	rx_bytes;
+	u64_stats_t	rx_errors;
+	u64_stats_t	rx_dropped;
+	u64_stats_t	rx_crc_errs;
+	u64_stats_t	rx_sym_errs;
+
+	/* Tx Stats*/
+	u64_stats_t	tx_packets;
+	u64_stats_t	tx_bytes;
+
+	struct u64_stats_sync		syncp;
+};
+
+struct bcmasp_intf_ops {
+	unsigned long (*rx_desc_read)(struct bcmasp_intf *intf);
+	void (*rx_buffer_write)(struct bcmasp_intf *intf, dma_addr_t addr);
+	void (*rx_desc_write)(struct bcmasp_intf *intf, dma_addr_t addr);
+	unsigned long (*tx_read)(struct bcmasp_intf *intf);
+	void (*tx_write)(struct bcmasp_intf *intf, dma_addr_t addr);
+};
+
+struct bcmasp_priv;
+
+struct bcmasp_intf {
+	struct list_head		list;
+	struct net_device		*ndev;
+	struct bcmasp_priv		*parent;
+
+	/* ASP Ch */
+	int				channel;
+	int				port;
+	const struct bcmasp_intf_ops	*ops;
+
+	/* Used for splitting shared resources */
+	int				index;
+
+	struct napi_struct		tx_napi;
+	/* TX ring, starts on a new cacheline boundary */
+	void __iomem			*tx_spb_dma;
+	int				tx_spb_index;
+	int				tx_spb_clean_index;
+	struct bcmasp_desc		*tx_spb_cpu;
+	dma_addr_t			tx_spb_dma_addr;
+	dma_addr_t			tx_spb_dma_valid;
+	dma_addr_t			tx_spb_dma_read;
+	struct bcmasp_tx_cb		*tx_cbs;
+
+	/* RX ring, starts on a new cacheline boundary */
+	void __iomem			*rx_edpkt_cfg;
+	void __iomem			*rx_edpkt_dma;
+	int				rx_edpkt_index;
+	int				rx_buf_order;
+	struct bcmasp_desc		*rx_edpkt_cpu;
+	dma_addr_t			rx_edpkt_dma_addr;
+	dma_addr_t			rx_edpkt_dma_read;
+
+	/* RX buffer prefetcher ring*/
+	void				*rx_ring_cpu;
+	dma_addr_t			rx_ring_dma;
+	dma_addr_t			rx_ring_dma_valid;
+	struct napi_struct		rx_napi;
+
+	struct bcmasp_res		res;
+	unsigned int			crc_fwd;
+
+	/* PHY device */
+	struct device_node		*phy_dn;
+	struct device_node		*ndev_dn;
+	phy_interface_t			phy_interface;
+	bool				internal_phy;
+	int				old_pause;
+	int				old_link;
+	int				old_duplex;
+
+	u32				msg_enable;
+
+	/* Statistics */
+	struct bcmasp_intf_stats64	stats64;
+};
+
+#define NUM_MDA_FILTERS				32
+struct bcmasp_mda_filter {
+	/* Current owner of this filter */
+	int		port;
+	bool		en;
+	u8		addr[ETH_ALEN];
+	u8		mask[ETH_ALEN];
+};
+
+struct bcmasp_hw_info {
+	u32		rx_ctrl_flush;
+	u32		umac2fb;
+	u32		rx_ctrl_fb_out_frame_count;
+	u32		rx_ctrl_fb_filt_out_frame_count;
+	u32		rx_ctrl_fb_rx_fifo_depth;
+};
+
+struct bcmasp_plat_data {
+	struct bcmasp_hw_info		*hw_info;
+};
+
+struct bcmasp_priv {
+	struct platform_device		*pdev;
+	struct clk			*clk;
+
+	int				irq;
+	u32				irq_mask;
+
+	void __iomem			*base;
+	struct	bcmasp_hw_info		*hw_info;
+
+	struct list_head		intfs;
+
+	struct bcmasp_mda_filter	mda_filters[NUM_MDA_FILTERS];
+
+	/* MAC destination address filters lock */
+	spinlock_t			mda_lock;
+
+	/* Protects accesses to ASP_CTRL_CLOCK_CTRL */
+	spinlock_t			clk_lock;
+};
+
+static inline unsigned long bcmasp_intf_rx_desc_read(struct bcmasp_intf *intf)
+{
+	return intf->ops->rx_desc_read(intf);
+}
+
+static inline void bcmasp_intf_rx_buffer_write(struct bcmasp_intf *intf,
+					       dma_addr_t addr)
+{
+	intf->ops->rx_buffer_write(intf, addr);
+}
+
+static inline void bcmasp_intf_rx_desc_write(struct bcmasp_intf *intf,
+					     dma_addr_t addr)
+{
+	intf->ops->rx_desc_write(intf, addr);
+}
+
+static inline unsigned long bcmasp_intf_tx_read(struct bcmasp_intf *intf)
+{
+	return intf->ops->tx_read(intf);
+}
+
+static inline void bcmasp_intf_tx_write(struct bcmasp_intf *intf,
+					dma_addr_t addr)
+{
+	intf->ops->tx_write(intf, addr);
+}
+
+#define __BCMASP_IO_MACRO(name, m)					\
+static inline u32 name##_rl(struct bcmasp_intf *intf, u32 off)		\
+{									\
+	u32 reg = readl_relaxed(intf->m + off);				\
+	return reg;							\
+}									\
+static inline void name##_wl(struct bcmasp_intf *intf, u32 val, u32 off)\
+{									\
+	writel_relaxed(val, intf->m + off);				\
+}
+
+#define BCMASP_IO_MACRO(name)		__BCMASP_IO_MACRO(name, res.name)
+#define BCMASP_FP_IO_MACRO(name)	__BCMASP_IO_MACRO(name, name)
+
+BCMASP_IO_MACRO(umac);
+BCMASP_IO_MACRO(umac2fb);
+BCMASP_IO_MACRO(rgmii);
+BCMASP_FP_IO_MACRO(tx_spb_dma);
+BCMASP_IO_MACRO(tx_spb_ctrl);
+BCMASP_IO_MACRO(tx_spb_top);
+BCMASP_IO_MACRO(tx_epkt_core);
+BCMASP_IO_MACRO(tx_pause_ctrl);
+BCMASP_FP_IO_MACRO(rx_edpkt_dma);
+BCMASP_FP_IO_MACRO(rx_edpkt_cfg);
+
+#define __BCMASP_FP_IO_MACRO_Q(name, m)					\
+static inline u64 name##_rq(struct bcmasp_intf *intf, u32 off)		\
+{									\
+	u64 reg = readq_relaxed(intf->m + off);				\
+	return reg;							\
+}									\
+static inline void name##_wq(struct bcmasp_intf *intf, u64 val, u32 off)\
+{									\
+	writeq_relaxed(val, intf->m + off);				\
+}
+
+#define BCMASP_FP_IO_MACRO_Q(name)	__BCMASP_FP_IO_MACRO_Q(name, name)
+
+BCMASP_FP_IO_MACRO_Q(tx_spb_dma);
+BCMASP_FP_IO_MACRO_Q(rx_edpkt_dma);
+BCMASP_FP_IO_MACRO_Q(rx_edpkt_cfg);
+
+#define PKT_OFFLOAD_NOP			(0 << 28)
+#define PKT_OFFLOAD_HDR_OP		(1 << 28)
+#define  PKT_OFFLOAD_HDR_WRBACK		BIT(19)
+#define  PKT_OFFLOAD_HDR_COUNT(x)	((x) << 16)
+#define  PKT_OFFLOAD_HDR_SIZE_1(x)	((x) << 4)
+#define  PKT_OFFLOAD_HDR_SIZE_2(x)	(x)
+#define  PKT_OFFLOAD_HDR2_SIZE_2(x)	((x) << 24)
+#define  PKT_OFFLOAD_HDR2_SIZE_3(x)	((x) << 12)
+#define  PKT_OFFLOAD_HDR2_SIZE_4(x)	(x)
+#define PKT_OFFLOAD_EPKT_OP		(2 << 28)
+#define  PKT_OFFLOAD_EPKT_WRBACK	BIT(23)
+#define  PKT_OFFLOAD_EPKT_IP(x)		((x) << 21)
+#define  PKT_OFFLOAD_EPKT_TP(x)		((x) << 19)
+#define  PKT_OFFLOAD_EPKT_LEN(x)	((x) << 16)
+#define  PKT_OFFLOAD_EPKT_CSUM_L3	BIT(15)
+#define  PKT_OFFLOAD_EPKT_CSUM_L2	BIT(14)
+#define  PKT_OFFLOAD_EPKT_ID(x)		((x) << 12)
+#define  PKT_OFFLOAD_EPKT_SEQ(x)	((x) << 10)
+#define  PKT_OFFLOAD_EPKT_TS(x)		((x) << 8)
+#define  PKT_OFFLOAD_EPKT_BLOC(x)	(x)
+#define PKT_OFFLOAD_END_OP		(7 << 28)
+
+struct bcmasp_pkt_offload {
+	__be32		nop;
+	__be32		header;
+	__be32		header2;
+	__be32		epkt;
+	__be32		end;
+};
+
+#define BCMASP_CORE_IO_MACRO(name, offset)				\
+static inline u32 name##_core_rl(struct bcmasp_priv *priv,		\
+				 u32 off)				\
+{									\
+	u32 reg = readl_relaxed(priv->base + (offset) + off);		\
+	return reg;							\
+}									\
+static inline void name##_core_wl(struct bcmasp_priv *priv,		\
+				  u32 val, u32 off)			\
+{									\
+	writel_relaxed(val, priv->base + (offset) + off);		\
+}
+
+BCMASP_CORE_IO_MACRO(intr2, ASP_INTR2_OFFSET);
+BCMASP_CORE_IO_MACRO(wakeup_intr2, ASP_WAKEUP_INTR2_OFFSET);
+BCMASP_CORE_IO_MACRO(tx_analytics, ASP_TX_ANALYTICS_OFFSET);
+BCMASP_CORE_IO_MACRO(rx_analytics, ASP_RX_ANALYTICS_OFFSET);
+BCMASP_CORE_IO_MACRO(rx_ctrl, ASP_RX_CTRL_OFFSET);
+BCMASP_CORE_IO_MACRO(rx_filter, ASP_RX_FILTER_OFFSET);
+BCMASP_CORE_IO_MACRO(rx_edpkt, ASP_EDPKT_OFFSET);
+BCMASP_CORE_IO_MACRO(ctrl, ASP_CTRL);
+
+struct bcmasp_intf *bcmasp_interface_create(struct bcmasp_priv *priv,
+					    struct device_node *ndev_dn, int i);
+
+void bcmasp_interface_destroy(struct bcmasp_intf *intf);
+
+void bcmasp_enable_tx_irq(struct bcmasp_intf *intf, int en);
+
+void bcmasp_enable_rx_irq(struct bcmasp_intf *intf, int en);
+
+void bcmasp_flush_rx_port(struct bcmasp_intf *intf);
+
+extern const struct ethtool_ops bcmasp_ethtool_ops;
+
+int bcmasp_interface_suspend(struct bcmasp_intf *intf);
+
+int bcmasp_interface_resume(struct bcmasp_intf *intf);
+
+void bcmasp_set_promisc(struct bcmasp_intf *intf, bool en);
+
+void bcmasp_set_allmulti(struct bcmasp_intf *intf, bool en);
+
+void bcmasp_set_broad(struct bcmasp_intf *intf, bool en);
+
+void bcmasp_set_oaddr(struct bcmasp_intf *intf, const unsigned char *addr,
+		      bool en);
+
+int bcmasp_set_en_mda_filter(struct bcmasp_intf *intf, unsigned char *addr,
+			     unsigned char *mask);
+
+void bcmasp_disable_all_filters(struct bcmasp_intf *intf);
+
+void bcmasp_core_clock_set_intf(struct bcmasp_intf *intf, bool en);
+
+#endif
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c b/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c
new file mode 100644
index 000000000000..394c0e1cb026
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+#define pr_fmt(fmt)				"bcmasp_ethtool: " fmt
+
+#include <linux/ethtool.h>
+#include <linux/netdevice.h>
+#include <linux/platform_device.h>
+
+#include "bcmasp.h"
+#include "bcmasp_intf_defs.h"
+
+static void bcmasp_get_drvinfo(struct net_device *dev,
+			       struct ethtool_drvinfo *info)
+{
+	strscpy(info->driver, "bcmasp", sizeof(info->driver));
+	strscpy(info->bus_info, dev_name(dev->dev.parent),
+		sizeof(info->bus_info));
+}
+
+static u32 bcmasp_get_msglevel(struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	return intf->msg_enable;
+}
+
+static void bcmasp_set_msglevel(struct net_device *dev, u32 level)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	intf->msg_enable = level;
+}
+
+const struct ethtool_ops bcmasp_ethtool_ops = {
+	.get_drvinfo		= bcmasp_get_drvinfo,
+	.get_link		= ethtool_op_get_link,
+	.get_link_ksettings	= phy_ethtool_get_link_ksettings,
+	.set_link_ksettings	= phy_ethtool_set_link_ksettings,
+	.get_msglevel		= bcmasp_get_msglevel,
+	.set_msglevel		= bcmasp_set_msglevel,
+};
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c b/drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c
new file mode 100644
index 000000000000..0232f5cf8909
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c
@@ -0,0 +1,1342 @@
+// SPDX-License-Identifier: GPL-2.0
+#define pr_fmt(fmt)			"bcmasp_intf: " fmt
+
+#include <asm/byteorder.h>
+#include <linux/brcmphy.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+#include <linux/netdevice.h>
+#include <linux/of_net.h>
+#include <linux/of_mdio.h>
+#include <linux/phy.h>
+#include <linux/phy_fixed.h>
+#include <linux/ptp_classify.h>
+#include <linux/platform_device.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+
+#include "bcmasp.h"
+#include "bcmasp_intf_defs.h"
+
+static int incr_ring(int index, int ring_count)
+{
+	index++;
+	if (index == ring_count)
+		return 0;
+
+	return index;
+}
+
+/* Points to last byte of descriptor */
+static dma_addr_t incr_last_byte(dma_addr_t addr, dma_addr_t beg,
+				 int ring_count)
+{
+	dma_addr_t end = beg + (ring_count * DESC_SIZE);
+
+	addr += DESC_SIZE;
+	if (addr > end)
+		return beg + DESC_SIZE - 1;
+
+	return addr;
+}
+
+/* Points to first byte of descriptor */
+static dma_addr_t incr_first_byte(dma_addr_t addr, dma_addr_t beg,
+				  int ring_count)
+{
+	dma_addr_t end = beg + (ring_count * DESC_SIZE);
+
+	addr += DESC_SIZE;
+	if (addr >= end)
+		return beg;
+
+	return addr;
+}
+
+static void bcmasp_enable_tx(struct bcmasp_intf *intf, int en)
+{
+	if (en) {
+		tx_spb_ctrl_wl(intf, TX_SPB_CTRL_ENABLE_EN, TX_SPB_CTRL_ENABLE);
+		tx_epkt_core_wl(intf, (TX_EPKT_C_CFG_MISC_EN |
+				TX_EPKT_C_CFG_MISC_PT |
+				(intf->port << TX_EPKT_C_CFG_MISC_PS_SHIFT)),
+				TX_EPKT_C_CFG_MISC);
+	} else {
+		tx_spb_ctrl_wl(intf, 0x0, TX_SPB_CTRL_ENABLE);
+		tx_epkt_core_wl(intf, 0x0, TX_EPKT_C_CFG_MISC);
+	}
+}
+
+static void bcmasp_enable_rx(struct bcmasp_intf *intf, int en)
+{
+	if (en)
+		rx_edpkt_cfg_wl(intf, RX_EDPKT_CFG_ENABLE_EN,
+				RX_EDPKT_CFG_ENABLE);
+	else
+		rx_edpkt_cfg_wl(intf, 0x0, RX_EDPKT_CFG_ENABLE);
+}
+
+static void bcmasp_set_rx_mode(struct net_device *dev)
+{
+	unsigned char mask[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	struct netdev_hw_addr *ha;
+	int ret;
+
+	spin_lock_bh(&intf->parent->mda_lock);
+
+	bcmasp_disable_all_filters(intf);
+
+	if (dev->flags & IFF_PROMISC)
+		goto set_promisc;
+
+	bcmasp_set_promisc(intf, 0);
+
+	bcmasp_set_broad(intf, 1);
+
+	bcmasp_set_oaddr(intf, dev->dev_addr, 1);
+
+	if (dev->flags & IFF_ALLMULTI) {
+		bcmasp_set_allmulti(intf, 1);
+	} else {
+		bcmasp_set_allmulti(intf, 0);
+
+		netdev_for_each_mc_addr(ha, dev) {
+			ret = bcmasp_set_en_mda_filter(intf, ha->addr, mask);
+			if (ret)
+				goto set_promisc;
+		}
+	}
+
+	netdev_for_each_uc_addr(ha, dev) {
+		ret = bcmasp_set_en_mda_filter(intf, ha->addr, mask);
+		if (ret)
+			goto set_promisc;
+	}
+
+	spin_unlock_bh(&intf->parent->mda_lock);
+	return;
+
+set_promisc:
+	bcmasp_set_promisc(intf, 1);
+
+	/* disable all filters used by this port */
+	bcmasp_disable_all_filters(intf);
+
+	spin_unlock_bh(&intf->parent->mda_lock);
+}
+
+static void bcmasp_clean_txcb(struct bcmasp_intf *intf, int index)
+{
+	struct bcmasp_tx_cb *txcb = &intf->tx_cbs[index];
+
+	txcb->skb = NULL;
+	dma_unmap_addr_set(txcb, dma_addr, 0);
+	dma_unmap_len_set(txcb, dma_len, 0);
+	txcb->last = false;
+}
+
+static int tx_spb_ring_full(struct bcmasp_intf *intf, int cnt)
+{
+	int next_index, i;
+
+	/* Check if we have enough room for cnt descriptors */
+	for (i = 0; i < cnt; i++) {
+		next_index = incr_ring(intf->tx_spb_index, DESC_RING_COUNT);
+		if (next_index == intf->tx_spb_clean_index)
+			return 1;
+	}
+
+	return 0;
+}
+
+static struct sk_buff *bcmasp_csum_offload(struct net_device *dev,
+					   struct sk_buff *skb,
+					   bool *csum_hw)
+{
+	u32 header = 0, header2 = 0, epkt = 0;
+	struct bcmasp_pkt_offload *offload;
+	unsigned int header_cnt = 0;
+	u8 ip_proto;
+	int ret;
+
+	if (skb->ip_summed != CHECKSUM_PARTIAL)
+		return skb;
+
+	ret = skb_cow_head(skb, sizeof(*offload));
+	if (ret < 0)
+		goto help;
+
+	switch (skb->protocol) {
+	case htons(ETH_P_IP):
+		header |= PKT_OFFLOAD_HDR_SIZE_2((ip_hdrlen(skb) >> 8) & 0xf);
+		header2 |= PKT_OFFLOAD_HDR2_SIZE_2(ip_hdrlen(skb) & 0xff);
+		epkt |= PKT_OFFLOAD_EPKT_IP(0) | PKT_OFFLOAD_EPKT_CSUM_L2;
+		ip_proto = ip_hdr(skb)->protocol;
+		header_cnt += 2;
+		break;
+	case htons(ETH_P_IPV6):
+		header |= PKT_OFFLOAD_HDR_SIZE_2((IP6_HLEN >> 8) & 0xf);
+		header2 |= PKT_OFFLOAD_HDR2_SIZE_2(IP6_HLEN & 0xff);
+		epkt |= PKT_OFFLOAD_EPKT_IP(1) | PKT_OFFLOAD_EPKT_CSUM_L2;
+		ip_proto = ipv6_hdr(skb)->nexthdr;
+		header_cnt += 2;
+		break;
+	default:
+		goto help;
+	}
+
+	switch (ip_proto) {
+	case IPPROTO_TCP:
+		header2 |= PKT_OFFLOAD_HDR2_SIZE_3(tcp_hdrlen(skb));
+		epkt |= PKT_OFFLOAD_EPKT_TP(0) | PKT_OFFLOAD_EPKT_CSUM_L3;
+		header_cnt++;
+		break;
+	case IPPROTO_UDP:
+		header2 |= PKT_OFFLOAD_HDR2_SIZE_3(UDP_HLEN);
+		epkt |= PKT_OFFLOAD_EPKT_TP(1) | PKT_OFFLOAD_EPKT_CSUM_L3;
+		header_cnt++;
+		break;
+	default:
+		goto help;
+	}
+
+	offload = (struct bcmasp_pkt_offload *)skb_push(skb, sizeof(*offload));
+
+	header |= PKT_OFFLOAD_HDR_OP | PKT_OFFLOAD_HDR_COUNT(header_cnt) |
+		  PKT_OFFLOAD_HDR_SIZE_1(ETH_HLEN);
+	epkt |= PKT_OFFLOAD_EPKT_OP;
+
+	offload->nop = htonl(PKT_OFFLOAD_NOP);
+	offload->header = htonl(header);
+	offload->header2 = htonl(header2);
+	offload->epkt = htonl(epkt);
+	offload->end = htonl(PKT_OFFLOAD_END_OP);
+	*csum_hw = true;
+
+	return skb;
+
+help:
+	skb_checksum_help(skb);
+
+	return skb;
+}
+
+static unsigned long bcmasp_rx_edpkt_dma_rq(struct bcmasp_intf *intf)
+{
+	return rx_edpkt_dma_rq(intf, RX_EDPKT_DMA_VALID);
+}
+
+static void bcmasp_rx_edpkt_cfg_wq(struct bcmasp_intf *intf, dma_addr_t addr)
+{
+	rx_edpkt_cfg_wq(intf, addr, RX_EDPKT_RING_BUFFER_READ);
+}
+
+static void bcmasp_rx_edpkt_dma_wq(struct bcmasp_intf *intf, dma_addr_t addr)
+{
+	rx_edpkt_dma_wq(intf, addr, RX_EDPKT_DMA_READ);
+}
+
+static unsigned long bcmasp_tx_spb_dma_rq(struct bcmasp_intf *intf)
+{
+	return tx_spb_dma_rq(intf, TX_SPB_DMA_READ);
+}
+
+static void bcmasp_tx_spb_dma_wq(struct bcmasp_intf *intf, dma_addr_t addr)
+{
+	tx_spb_dma_wq(intf, addr, TX_SPB_DMA_VALID);
+}
+
+static const struct bcmasp_intf_ops bcmasp_intf_ops = {
+	.rx_desc_read = bcmasp_rx_edpkt_dma_rq,
+	.rx_buffer_write = bcmasp_rx_edpkt_cfg_wq,
+	.rx_desc_write = bcmasp_rx_edpkt_dma_wq,
+	.tx_read = bcmasp_tx_spb_dma_rq,
+	.tx_write = bcmasp_tx_spb_dma_wq,
+};
+
+static netdev_tx_t bcmasp_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	unsigned int total_bytes, size;
+	int spb_index, nr_frags, i, j;
+	struct bcmasp_tx_cb *txcb;
+	dma_addr_t mapping, valid;
+	struct bcmasp_desc *desc;
+	bool csum_hw = false;
+	struct device *kdev;
+	skb_frag_t *frag;
+
+	kdev = &intf->parent->pdev->dev;
+
+	nr_frags = skb_shinfo(skb)->nr_frags;
+
+	if (tx_spb_ring_full(intf, nr_frags + 1)) {
+		netif_stop_queue(dev);
+		if (net_ratelimit())
+			netdev_err(dev, "Tx Ring Full!\n");
+		return NETDEV_TX_BUSY;
+	}
+
+	/* Save skb len before adding csum offload header */
+	total_bytes = skb->len;
+	skb = bcmasp_csum_offload(dev, skb, &csum_hw);
+	if (!skb)
+		return NETDEV_TX_OK;
+
+	spb_index = intf->tx_spb_index;
+	valid = intf->tx_spb_dma_valid;
+	for (i = 0; i <= nr_frags; i++) {
+		if (!i) {
+			size = skb_headlen(skb);
+			if (!nr_frags && size < (ETH_ZLEN + ETH_FCS_LEN)) {
+				if (skb_put_padto(skb, ETH_ZLEN + ETH_FCS_LEN))
+					return NETDEV_TX_OK;
+				size = skb->len;
+			}
+			mapping = dma_map_single(kdev, skb->data, size,
+						 DMA_TO_DEVICE);
+		} else {
+			frag = &skb_shinfo(skb)->frags[i - 1];
+			size = skb_frag_size(frag);
+			mapping = skb_frag_dma_map(kdev, frag, 0, size,
+						   DMA_TO_DEVICE);
+		}
+
+		if (dma_mapping_error(kdev, mapping)) {
+			spb_index = intf->tx_spb_index;
+			for (j = 0; j < i; j++) {
+				bcmasp_clean_txcb(intf, spb_index);
+				spb_index = incr_ring(spb_index,
+						      DESC_RING_COUNT);
+			}
+			/* Rewind so we do not have a hole */
+			spb_index = intf->tx_spb_index;
+			return NETDEV_TX_OK;
+		}
+
+		txcb = &intf->tx_cbs[spb_index];
+		desc = &intf->tx_spb_cpu[spb_index];
+		memset(desc, 0, sizeof(*desc));
+		txcb->skb = skb;
+		txcb->bytes_sent = total_bytes;
+		dma_unmap_addr_set(txcb, dma_addr, mapping);
+		dma_unmap_len_set(txcb, dma_len, size);
+		if (!i) {
+			desc->flags |= DESC_SOF;
+			if (csum_hw)
+				desc->flags |= DESC_EPKT_CMD;
+		}
+
+		if (i == nr_frags) {
+			desc->flags |= DESC_EOF;
+			txcb->last = true;
+		}
+
+		desc->buf = mapping;
+		desc->size = size;
+		desc->flags |= DESC_INT_EN;
+
+		netif_dbg(intf, tx_queued, dev,
+			  "%s dma_buf=%pad dma_len=0x%x flags=0x%x index=0x%x\n",
+			  __func__, &mapping, desc->size, desc->flags,
+			  spb_index);
+
+		spb_index = incr_ring(spb_index, DESC_RING_COUNT);
+		valid = incr_last_byte(valid, intf->tx_spb_dma_addr,
+				       DESC_RING_COUNT);
+	}
+
+	/* Ensure all descriptors have been written to DRAM for the
+	 * hardware to see up-to-date contents.
+	 */
+	wmb();
+
+	intf->tx_spb_index = spb_index;
+	intf->tx_spb_dma_valid = valid;
+	bcmasp_intf_tx_write(intf, intf->tx_spb_dma_valid);
+
+	if (tx_spb_ring_full(intf, MAX_SKB_FRAGS + 1))
+		netif_stop_queue(dev);
+
+	return NETDEV_TX_OK;
+}
+
+static void bcmasp_netif_start(struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	bcmasp_set_rx_mode(dev);
+	napi_enable(&intf->tx_napi);
+	napi_enable(&intf->rx_napi);
+
+	bcmasp_enable_rx_irq(intf, 1);
+	bcmasp_enable_tx_irq(intf, 1);
+
+	phy_start(dev->phydev);
+}
+
+static void umac_reset(struct bcmasp_intf *intf)
+{
+	umac_wl(intf, 0x0, UMC_CMD);
+	umac_wl(intf, UMC_CMD_SW_RESET, UMC_CMD);
+	usleep_range(10, 100);
+	umac_wl(intf, 0x0, UMC_CMD);
+}
+
+static void umac_set_hw_addr(struct bcmasp_intf *intf,
+			     const unsigned char *addr)
+{
+	u32 mac0 = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) |
+		    addr[3];
+	u32 mac1 = (addr[4] << 8) | addr[5];
+
+	umac_wl(intf, mac0, UMC_MAC0);
+	umac_wl(intf, mac1, UMC_MAC1);
+}
+
+static void umac_enable_set(struct bcmasp_intf *intf, u32 mask,
+			    unsigned int enable)
+{
+	u32 reg;
+
+	reg = umac_rl(intf, UMC_CMD);
+	if (enable)
+		reg |= mask;
+	else
+		reg &= ~mask;
+	umac_wl(intf, reg, UMC_CMD);
+
+	/* UniMAC stops on a packet boundary, wait for a full-sized packet
+	 * to be processed (1 msec).
+	 */
+	if (enable == 0)
+		usleep_range(1000, 2000);
+}
+
+static void umac_init(struct bcmasp_intf *intf)
+{
+	umac_wl(intf, 0x800, UMC_FRM_LEN);
+	umac_wl(intf, 0xffff, UMC_PAUSE_CNTRL);
+	umac_wl(intf, 0x800, UMC_RX_MAX_PKT_SZ);
+	umac_enable_set(intf, UMC_CMD_PROMISC, 1);
+}
+
+static int bcmasp_tx_poll(struct napi_struct *napi, int budget)
+{
+	struct bcmasp_intf *intf =
+		container_of(napi, struct bcmasp_intf, tx_napi);
+	struct bcmasp_intf_stats64 *stats = &intf->stats64;
+	struct device *kdev = &intf->parent->pdev->dev;
+	unsigned long read, released = 0;
+	struct bcmasp_tx_cb *txcb;
+	struct bcmasp_desc *desc;
+	dma_addr_t mapping;
+
+	read = bcmasp_intf_tx_read(intf);
+	while (intf->tx_spb_dma_read != read) {
+		txcb = &intf->tx_cbs[intf->tx_spb_clean_index];
+		mapping = dma_unmap_addr(txcb, dma_addr);
+
+		dma_unmap_single(kdev, mapping,
+				 dma_unmap_len(txcb, dma_len),
+				 DMA_TO_DEVICE);
+
+		if (txcb->last) {
+			dev_consume_skb_any(txcb->skb);
+
+			u64_stats_update_begin(&stats->syncp);
+			u64_stats_inc(&stats->tx_packets);
+			u64_stats_add(&stats->tx_bytes, txcb->bytes_sent);
+			u64_stats_update_end(&stats->syncp);
+		}
+
+		desc = &intf->tx_spb_cpu[intf->tx_spb_clean_index];
+
+		netif_dbg(intf, tx_done, intf->ndev,
+			  "%s dma_buf=%pad dma_len=0x%x flags=0x%x c_index=0x%x\n",
+			  __func__, &mapping, desc->size, desc->flags,
+			  intf->tx_spb_clean_index);
+
+		bcmasp_clean_txcb(intf, intf->tx_spb_clean_index);
+		released++;
+
+		intf->tx_spb_clean_index = incr_ring(intf->tx_spb_clean_index,
+						     DESC_RING_COUNT);
+		intf->tx_spb_dma_read = incr_first_byte(intf->tx_spb_dma_read,
+							intf->tx_spb_dma_addr,
+							DESC_RING_COUNT);
+	}
+
+	/* Ensure all descriptors have been written to DRAM for the hardware
+	 * to see updated contents.
+	 */
+	wmb();
+
+	napi_complete(&intf->tx_napi);
+
+	bcmasp_enable_tx_irq(intf, 1);
+
+	if (released)
+		netif_wake_queue(intf->ndev);
+
+	return 0;
+}
+
+static int bcmasp_rx_poll(struct napi_struct *napi, int budget)
+{
+	struct bcmasp_intf *intf =
+		container_of(napi, struct bcmasp_intf, rx_napi);
+	struct bcmasp_intf_stats64 *stats = &intf->stats64;
+	struct device *kdev = &intf->parent->pdev->dev;
+	unsigned long processed = 0;
+	struct bcmasp_desc *desc;
+	struct sk_buff *skb;
+	dma_addr_t valid;
+	void *data;
+	u64 flags;
+	u32 len;
+
+	valid = bcmasp_intf_rx_desc_read(intf) + 1;
+	if (valid == intf->rx_edpkt_dma_addr + DESC_RING_SIZE)
+		valid = intf->rx_edpkt_dma_addr;
+
+	while ((processed < budget) && (valid != intf->rx_edpkt_dma_read)) {
+		desc = &intf->rx_edpkt_cpu[intf->rx_edpkt_index];
+
+		/* Ensure that descriptor has been fully written to DRAM by
+		 * hardware before reading by the CPU
+		 */
+		rmb();
+
+		/* Calculate virt addr by offsetting from physical addr */
+		data = intf->rx_ring_cpu +
+			(DESC_ADDR(desc->buf) - intf->rx_ring_dma);
+
+		flags = DESC_FLAGS(desc->buf);
+		if (unlikely(flags & (DESC_CRC_ERR | DESC_RX_SYM_ERR))) {
+			if (net_ratelimit()) {
+				netif_err(intf, rx_status, intf->ndev,
+					  "flags=0x%llx\n", flags);
+			}
+
+			u64_stats_update_begin(&stats->syncp);
+			if (flags & DESC_CRC_ERR)
+				u64_stats_inc(&stats->rx_crc_errs);
+			if (flags & DESC_RX_SYM_ERR)
+				u64_stats_inc(&stats->rx_sym_errs);
+			u64_stats_update_end(&stats->syncp);
+
+			goto next;
+		}
+
+		dma_sync_single_for_cpu(kdev, DESC_ADDR(desc->buf), desc->size,
+					DMA_FROM_DEVICE);
+
+		len = desc->size;
+
+		skb = napi_alloc_skb(napi, len);
+		if (!skb) {
+			u64_stats_update_begin(&stats->syncp);
+			u64_stats_inc(&stats->rx_dropped);
+			u64_stats_update_end(&stats->syncp);
+			goto next;
+		}
+
+		skb_put(skb, len);
+		memcpy(skb->data, data, len);
+
+		skb_pull(skb, 2);
+		len -= 2;
+		if (likely(intf->crc_fwd)) {
+			skb_trim(skb, len - ETH_FCS_LEN);
+			len -= ETH_FCS_LEN;
+		}
+
+		if ((intf->ndev->features & NETIF_F_RXCSUM) &&
+		    (desc->buf & DESC_CHKSUM))
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+		skb->protocol = eth_type_trans(skb, intf->ndev);
+
+		napi_gro_receive(napi, skb);
+
+		u64_stats_update_begin(&stats->syncp);
+		u64_stats_inc(&stats->rx_packets);
+		u64_stats_add(&stats->rx_bytes, len);
+		u64_stats_update_end(&stats->syncp);
+
+next:
+		bcmasp_intf_rx_buffer_write(intf, (DESC_ADDR(desc->buf) +
+					    desc->size));
+
+		processed++;
+		intf->rx_edpkt_dma_read =
+			incr_first_byte(intf->rx_edpkt_dma_read,
+					intf->rx_edpkt_dma_addr,
+					DESC_RING_COUNT);
+		intf->rx_edpkt_index = incr_ring(intf->rx_edpkt_index,
+						 DESC_RING_COUNT);
+	}
+
+	bcmasp_intf_rx_desc_write(intf, intf->rx_edpkt_dma_read);
+
+	if (processed < budget) {
+		napi_complete_done(&intf->rx_napi, processed);
+		bcmasp_enable_rx_irq(intf, 1);
+	}
+
+	return processed;
+}
+
+static void bcmasp_adj_link(struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	struct phy_device *phydev = dev->phydev;
+	u32 cmd_bits = 0, reg;
+	int changed = 0;
+
+	if (intf->old_link != phydev->link) {
+		changed = 1;
+		intf->old_link = phydev->link;
+	}
+
+	if (intf->old_duplex != phydev->duplex) {
+		changed = 1;
+		intf->old_duplex = phydev->duplex;
+	}
+
+	switch (phydev->speed) {
+	case SPEED_2500:
+		cmd_bits = UMC_CMD_SPEED_2500;
+		break;
+	case SPEED_1000:
+		cmd_bits = UMC_CMD_SPEED_1000;
+		break;
+	case SPEED_100:
+		cmd_bits = UMC_CMD_SPEED_100;
+		break;
+	case SPEED_10:
+		cmd_bits = UMC_CMD_SPEED_10;
+		break;
+	default:
+		break;
+	}
+	cmd_bits <<= UMC_CMD_SPEED_SHIFT;
+
+	if (phydev->duplex == DUPLEX_HALF)
+		cmd_bits |= UMC_CMD_HD_EN;
+
+	if (intf->old_pause != phydev->pause) {
+		changed = 1;
+		intf->old_pause = phydev->pause;
+	}
+
+	if (!phydev->pause)
+		cmd_bits |= UMC_CMD_RX_PAUSE_IGNORE | UMC_CMD_TX_PAUSE_IGNORE;
+
+	if (!changed)
+		return;
+
+	if (phydev->link) {
+		reg = umac_rl(intf, UMC_CMD);
+		reg &= ~((UMC_CMD_SPEED_MASK << UMC_CMD_SPEED_SHIFT) |
+			UMC_CMD_HD_EN | UMC_CMD_RX_PAUSE_IGNORE |
+			UMC_CMD_TX_PAUSE_IGNORE);
+		reg |= cmd_bits;
+		umac_wl(intf, reg, UMC_CMD);
+	}
+
+	reg = rgmii_rl(intf, RGMII_OOB_CNTRL);
+	if (phydev->link)
+		reg |= RGMII_LINK;
+	else
+		reg &= ~RGMII_LINK;
+	rgmii_wl(intf, reg, RGMII_OOB_CNTRL);
+
+	if (changed)
+		phy_print_status(phydev);
+}
+
+static int bcmasp_init_rx(struct bcmasp_intf *intf)
+{
+	struct device *kdev = &intf->parent->pdev->dev;
+	struct page *buffer_pg;
+	dma_addr_t dma;
+	void *p;
+	u32 reg;
+	int ret;
+
+	intf->rx_buf_order = get_order(RING_BUFFER_SIZE);
+	buffer_pg = alloc_pages(GFP_KERNEL, intf->rx_buf_order);
+
+	dma = dma_map_page(kdev, buffer_pg, 0, RING_BUFFER_SIZE,
+			   DMA_FROM_DEVICE);
+	if (dma_mapping_error(kdev, dma)) {
+		__free_pages(buffer_pg, intf->rx_buf_order);
+		return -ENOMEM;
+	}
+	intf->rx_ring_cpu = page_to_virt(buffer_pg);
+	intf->rx_ring_dma = dma;
+	intf->rx_ring_dma_valid = intf->rx_ring_dma + RING_BUFFER_SIZE - 1;
+
+	p = dma_alloc_coherent(kdev, DESC_RING_SIZE, &intf->rx_edpkt_dma_addr,
+			       GFP_KERNEL);
+	if (!p) {
+		ret = -ENOMEM;
+		goto free_rx_ring;
+	}
+	intf->rx_edpkt_cpu = p;
+
+	netif_napi_add(intf->ndev, &intf->rx_napi, bcmasp_rx_poll);
+
+	intf->rx_edpkt_dma_read = intf->rx_edpkt_dma_addr;
+	intf->rx_edpkt_index = 0;
+
+	/* Make sure channels are disabled */
+	rx_edpkt_cfg_wl(intf, 0x0, RX_EDPKT_CFG_ENABLE);
+
+	/* Rx SPB */
+	rx_edpkt_cfg_wq(intf, intf->rx_ring_dma, RX_EDPKT_RING_BUFFER_READ);
+	rx_edpkt_cfg_wq(intf, intf->rx_ring_dma, RX_EDPKT_RING_BUFFER_WRITE);
+	rx_edpkt_cfg_wq(intf, intf->rx_ring_dma, RX_EDPKT_RING_BUFFER_BASE);
+	rx_edpkt_cfg_wq(intf, intf->rx_ring_dma_valid,
+			RX_EDPKT_RING_BUFFER_END);
+	rx_edpkt_cfg_wq(intf, intf->rx_ring_dma_valid,
+			RX_EDPKT_RING_BUFFER_VALID);
+
+	/* EDPKT */
+	rx_edpkt_cfg_wl(intf, (RX_EDPKT_CFG_CFG0_RBUF_4K <<
+			RX_EDPKT_CFG_CFG0_DBUF_SHIFT) |
+		       (RX_EDPKT_CFG_CFG0_64_ALN <<
+			RX_EDPKT_CFG_CFG0_BALN_SHIFT) |
+		       (RX_EDPKT_CFG_CFG0_EFRM_STUF),
+			RX_EDPKT_CFG_CFG0);
+	rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr, RX_EDPKT_DMA_WRITE);
+	rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr, RX_EDPKT_DMA_READ);
+	rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr, RX_EDPKT_DMA_BASE);
+	rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr + (DESC_RING_SIZE - 1),
+			RX_EDPKT_DMA_END);
+	rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr + (DESC_RING_SIZE - 1),
+			RX_EDPKT_DMA_VALID);
+
+	reg = UMAC2FB_CFG_DEFAULT_EN |
+	      ((intf->channel + 11) << UMAC2FB_CFG_CHID_SHIFT);
+	reg |= (0xd << UMAC2FB_CFG_OK_SEND_SHIFT);
+	umac2fb_wl(intf, reg, UMAC2FB_CFG);
+
+	return 0;
+
+free_rx_ring:
+	dma_unmap_page(kdev, intf->rx_ring_dma, RING_BUFFER_SIZE,
+		       DMA_FROM_DEVICE);
+	__free_pages(virt_to_page(intf->rx_ring_cpu), intf->rx_buf_order);
+
+	return ret;
+}
+
+static void bcmasp_reclaim_free_all_rx(struct bcmasp_intf *intf)
+{
+	struct device *kdev = &intf->parent->pdev->dev;
+
+	dma_free_coherent(kdev, DESC_RING_SIZE, intf->rx_edpkt_cpu,
+			  intf->rx_edpkt_dma_addr);
+	dma_unmap_page(kdev, intf->rx_ring_dma, RING_BUFFER_SIZE,
+		       DMA_FROM_DEVICE);
+	__free_pages(virt_to_page(intf->rx_ring_cpu), intf->rx_buf_order);
+}
+
+static int bcmasp_init_tx(struct bcmasp_intf *intf)
+{
+	struct device *kdev = &intf->parent->pdev->dev;
+	void *p;
+	int ret;
+
+	p = dma_alloc_coherent(kdev, DESC_RING_SIZE, &intf->tx_spb_dma_addr,
+			       GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+
+	intf->tx_spb_cpu = p;
+	intf->tx_spb_dma_valid = intf->tx_spb_dma_addr + DESC_RING_SIZE - 1;
+	intf->tx_spb_dma_read = intf->tx_spb_dma_addr;
+
+	intf->tx_cbs = kcalloc(DESC_RING_COUNT, sizeof(struct bcmasp_tx_cb),
+			       GFP_KERNEL);
+	if (!intf->tx_cbs) {
+		ret = -ENOMEM;
+		goto free_tx_spb;
+	}
+
+	intf->tx_spb_index = 0;
+	intf->tx_spb_clean_index = 0;
+
+	netif_napi_add_tx(intf->ndev, &intf->tx_napi, bcmasp_tx_poll);
+
+	/* Make sure channels are disabled */
+	tx_spb_ctrl_wl(intf, 0x0, TX_SPB_CTRL_ENABLE);
+	tx_epkt_core_wl(intf, 0x0, TX_EPKT_C_CFG_MISC);
+
+	/* Tx SPB */
+	tx_spb_ctrl_wl(intf, ((intf->channel + 8) << TX_SPB_CTRL_XF_BID_SHIFT),
+		       TX_SPB_CTRL_XF_CTRL2);
+	tx_pause_ctrl_wl(intf, (1 << (intf->channel + 8)), TX_PAUSE_MAP_VECTOR);
+	tx_spb_top_wl(intf, 0x1e, TX_SPB_TOP_BLKOUT);
+	tx_spb_top_wl(intf, 0x0, TX_SPB_TOP_SPRE_BW_CTRL);
+
+	tx_spb_dma_wq(intf, intf->tx_spb_dma_addr, TX_SPB_DMA_READ);
+	tx_spb_dma_wq(intf, intf->tx_spb_dma_addr, TX_SPB_DMA_BASE);
+	tx_spb_dma_wq(intf, intf->tx_spb_dma_valid, TX_SPB_DMA_END);
+	tx_spb_dma_wq(intf, intf->tx_spb_dma_valid, TX_SPB_DMA_VALID);
+
+	return 0;
+
+free_tx_spb:
+	dma_free_coherent(kdev, DESC_RING_SIZE, intf->tx_spb_cpu,
+			  intf->tx_spb_dma_addr);
+
+	return ret;
+}
+
+static void bcmasp_reclaim_free_all_tx(struct bcmasp_intf *intf)
+{
+	struct device *kdev = &intf->parent->pdev->dev;
+
+	/* Free descriptors */
+	dma_free_coherent(kdev, DESC_RING_SIZE, intf->tx_spb_cpu,
+			  intf->tx_spb_dma_addr);
+
+	/* Free cbs */
+	kfree(intf->tx_cbs);
+}
+
+static void bcmasp_ephy_enable_set(struct bcmasp_intf *intf, bool enable)
+{
+	u32 mask = RGMII_EPHY_CFG_IDDQ_BIAS | RGMII_EPHY_CFG_EXT_PWRDOWN |
+		   RGMII_EPHY_CFG_IDDQ_GLOBAL;
+	u32 reg;
+
+	reg = rgmii_rl(intf, RGMII_EPHY_CNTRL);
+	if (enable) {
+		reg &= ~RGMII_EPHY_CK25_DIS;
+		rgmii_wl(intf, reg, RGMII_EPHY_CNTRL);
+		mdelay(1);
+
+		reg &= ~mask;
+		reg |= RGMII_EPHY_RESET;
+		rgmii_wl(intf, reg, RGMII_EPHY_CNTRL);
+		mdelay(1);
+
+		reg &= ~RGMII_EPHY_RESET;
+	} else {
+		reg |= mask | RGMII_EPHY_RESET;
+		rgmii_wl(intf, reg, RGMII_EPHY_CNTRL);
+		mdelay(1);
+		reg |= RGMII_EPHY_CK25_DIS;
+	}
+	rgmii_wl(intf, reg, RGMII_EPHY_CNTRL);
+	mdelay(1);
+
+	/* Set or clear the LED control override to avoid lighting up LEDs
+	 * while the EPHY is powered off and drawing unnecessary current.
+	 */
+	reg = rgmii_rl(intf, RGMII_SYS_LED_CNTRL);
+	if (enable)
+		reg &= ~RGMII_SYS_LED_CNTRL_LINK_OVRD;
+	else
+		reg |= RGMII_SYS_LED_CNTRL_LINK_OVRD;
+	rgmii_wl(intf, reg, RGMII_SYS_LED_CNTRL);
+}
+
+static void bcmasp_rgmii_mode_en_set(struct bcmasp_intf *intf, bool enable)
+{
+	u32 reg;
+
+	reg = rgmii_rl(intf, RGMII_OOB_CNTRL);
+	reg &= ~RGMII_OOB_DIS;
+	if (enable)
+		reg |= RGMII_MODE_EN;
+	else
+		reg &= ~RGMII_MODE_EN;
+	rgmii_wl(intf, reg, RGMII_OOB_CNTRL);
+}
+
+static void bcmasp_netif_deinit(struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	u32 reg, timeout = 1000;
+
+	napi_disable(&intf->tx_napi);
+
+	bcmasp_enable_tx(intf, 0);
+
+	/* Flush any TX packets in the pipe */
+	tx_spb_dma_wl(intf, TX_SPB_DMA_FIFO_FLUSH, TX_SPB_DMA_FIFO_CTRL);
+	do {
+		reg = tx_spb_dma_rl(intf, TX_SPB_DMA_FIFO_STATUS);
+		if (!(reg & TX_SPB_DMA_FIFO_FLUSH))
+			break;
+		usleep_range(1000, 2000);
+	} while (timeout-- > 0);
+	tx_spb_dma_wl(intf, 0x0, TX_SPB_DMA_FIFO_CTRL);
+
+	umac_enable_set(intf, UMC_CMD_TX_EN, 0);
+
+	phy_stop(dev->phydev);
+
+	umac_enable_set(intf, UMC_CMD_RX_EN, 0);
+
+	bcmasp_flush_rx_port(intf);
+	usleep_range(1000, 2000);
+	bcmasp_enable_rx(intf, 0);
+
+	napi_disable(&intf->rx_napi);
+
+	/* Disable interrupts */
+	bcmasp_enable_tx_irq(intf, 0);
+	bcmasp_enable_rx_irq(intf, 0);
+
+	netif_napi_del(&intf->tx_napi);
+	bcmasp_reclaim_free_all_tx(intf);
+
+	netif_napi_del(&intf->rx_napi);
+	bcmasp_reclaim_free_all_rx(intf);
+}
+
+static int bcmasp_stop(struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	netif_dbg(intf, ifdown, dev, "bcmasp stop\n");
+
+	/* Stop tx from updating HW */
+	netif_tx_disable(dev);
+
+	bcmasp_netif_deinit(dev);
+
+	phy_disconnect(dev->phydev);
+
+	/* Disable internal EPHY or external PHY */
+	if (intf->internal_phy)
+		bcmasp_ephy_enable_set(intf, false);
+	else
+		bcmasp_rgmii_mode_en_set(intf, false);
+
+	/* Disable the interface clocks */
+	bcmasp_core_clock_set_intf(intf, false);
+
+	clk_disable_unprepare(intf->parent->clk);
+
+	return 0;
+}
+
+static void bcmasp_configure_port(struct bcmasp_intf *intf)
+{
+	u32 reg, id_mode_dis = 0;
+
+	reg = rgmii_rl(intf, RGMII_PORT_CNTRL);
+	reg &= ~RGMII_PORT_MODE_MASK;
+
+	switch (intf->phy_interface) {
+	case PHY_INTERFACE_MODE_RGMII:
+		/* RGMII_NO_ID: TXC transitions at the same time as TXD
+		 *		(requires PCB or receiver-side delay)
+		 * RGMII:	Add 2ns delay on TXC (90 degree shift)
+		 *
+		 * ID is implicitly disabled for 100Mbps (RG)MII operation.
+		 */
+		id_mode_dis = RGMII_ID_MODE_DIS;
+		fallthrough;
+	case PHY_INTERFACE_MODE_RGMII_TXID:
+		reg |= RGMII_PORT_MODE_EXT_GPHY;
+		break;
+	case PHY_INTERFACE_MODE_MII:
+		reg |= RGMII_PORT_MODE_EXT_EPHY;
+		break;
+	default:
+		break;
+	}
+
+	if (intf->internal_phy)
+		reg |= RGMII_PORT_MODE_EPHY;
+
+	rgmii_wl(intf, reg, RGMII_PORT_CNTRL);
+
+	reg = rgmii_rl(intf, RGMII_OOB_CNTRL);
+	reg &= ~RGMII_ID_MODE_DIS;
+	reg |= id_mode_dis;
+	rgmii_wl(intf, reg, RGMII_OOB_CNTRL);
+}
+
+static int bcmasp_netif_init(struct net_device *dev, bool phy_connect)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	phy_interface_t phy_iface = intf->phy_interface;
+	u32 phy_flags = PHY_BRCM_AUTO_PWRDWN_ENABLE |
+			PHY_BRCM_DIS_TXCRXC_NOENRGY |
+			PHY_BRCM_IDDQ_SUSPEND;
+	struct phy_device *phydev = NULL;
+	int ret;
+
+	/* Always enable interface clocks */
+	bcmasp_core_clock_set_intf(intf, true);
+
+	/* Enable internal PHY or external PHY before any MAC activity */
+	if (intf->internal_phy)
+		bcmasp_ephy_enable_set(intf, true);
+	else
+		bcmasp_rgmii_mode_en_set(intf, true);
+	bcmasp_configure_port(intf);
+
+	/* This is an ugly quirk but we have not been correctly
+	 * interpreting the phy_interface values and we have done that
+	 * across different drivers, so at least we are consistent in
+	 * our mistakes.
+	 *
+	 * When the Generic PHY driver is in use either the PHY has
+	 * been strapped or programmed correctly by the boot loader so
+	 * we should stick to our incorrect interpretation since we
+	 * have validated it.
+	 *
+	 * Now when a dedicated PHY driver is in use, we need to
+	 * reverse the meaning of the phy_interface_mode values to
+	 * something that the PHY driver will interpret and act on such
+	 * that we have two mistakes canceling themselves so to speak.
+	 * We only do this for the two modes that GENET driver
+	 * officially supports on Broadcom STB chips:
+	 * PHY_INTERFACE_MODE_RGMII and PHY_INTERFACE_MODE_RGMII_TXID.
+	 * Other modes are not *officially* supported with the boot
+	 * loader and the scripted environment generating Device Tree
+	 * blobs for those platforms.
+	 *
+	 * Note that internal PHY and fixed-link configurations are not
+	 * affected because they use different phy_interface_t values
+	 * or the Generic PHY driver.
+	 */
+	switch (phy_iface) {
+	case PHY_INTERFACE_MODE_RGMII:
+		phy_iface = PHY_INTERFACE_MODE_RGMII_ID;
+		break;
+	case PHY_INTERFACE_MODE_RGMII_TXID:
+		phy_iface = PHY_INTERFACE_MODE_RGMII_RXID;
+		break;
+	default:
+		break;
+	}
+
+	if (phy_connect) {
+		phydev = of_phy_connect(dev, intf->phy_dn,
+					bcmasp_adj_link, phy_flags,
+					phy_iface);
+		if (!phydev) {
+			ret = -ENODEV;
+			netdev_err(dev, "could not attach to PHY\n");
+			goto err_phy_disable;
+		}
+	} else {
+		ret = phy_resume(dev->phydev);
+		if (ret)
+			goto err_phy_disable;
+	}
+
+	umac_reset(intf);
+
+	umac_init(intf);
+
+	/* Disable the UniMAC RX/TX */
+	umac_enable_set(intf, (UMC_CMD_RX_EN | UMC_CMD_TX_EN), 0);
+
+	umac_set_hw_addr(intf, dev->dev_addr);
+
+	intf->old_duplex = -1;
+	intf->old_link = -1;
+	intf->old_pause = -1;
+
+	ret = bcmasp_init_tx(intf);
+	if (ret)
+		goto err_phy_disconnect;
+
+	/* Turn on asp */
+	bcmasp_enable_tx(intf, 1);
+
+	ret = bcmasp_init_rx(intf);
+	if (ret)
+		goto err_reclaim_tx;
+
+	bcmasp_enable_rx(intf, 1);
+
+	/* Turn on UniMAC TX/RX */
+	umac_enable_set(intf, (UMC_CMD_RX_EN | UMC_CMD_TX_EN), 1);
+
+	intf->crc_fwd = !!(umac_rl(intf, UMC_CMD) & UMC_CMD_CRC_FWD);
+
+	bcmasp_netif_start(dev);
+
+	netif_start_queue(dev);
+
+	return 0;
+
+err_reclaim_tx:
+	bcmasp_reclaim_free_all_tx(intf);
+err_phy_disconnect:
+	if (phydev)
+		phy_disconnect(phydev);
+err_phy_disable:
+	if (intf->internal_phy)
+		bcmasp_ephy_enable_set(intf, false);
+	else
+		bcmasp_rgmii_mode_en_set(intf, false);
+	return ret;
+}
+
+static int bcmasp_open(struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	int ret;
+
+	netif_dbg(intf, ifup, dev, "bcmasp open\n");
+
+	ret = clk_prepare_enable(intf->parent->clk);
+	if (ret)
+		return ret;
+
+	ret = bcmasp_netif_init(dev, true);
+	if (ret)
+		clk_disable_unprepare(intf->parent->clk);
+
+	return ret;
+}
+
+static void bcmasp_tx_timeout(struct net_device *dev, unsigned int txqueue)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	netif_dbg(intf, tx_err, dev, "transmit timeout!\n");
+}
+
+static int bcmasp_get_phys_port_name(struct net_device *dev,
+				     char *name, size_t len)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	if (snprintf(name, len, "p%d", intf->port) >= len)
+		return -EINVAL;
+
+	return 0;
+}
+
+static void bcmasp_get_stats64(struct net_device *dev,
+			       struct rtnl_link_stats64 *stats)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	struct bcmasp_intf_stats64 *lstats;
+	unsigned int start;
+
+	lstats = &intf->stats64;
+
+	do {
+		start = u64_stats_fetch_begin(&lstats->syncp);
+		stats->rx_packets = u64_stats_read(&lstats->rx_packets);
+		stats->rx_bytes = u64_stats_read(&lstats->rx_bytes);
+		stats->rx_dropped = u64_stats_read(&lstats->rx_dropped);
+		stats->rx_crc_errors = u64_stats_read(&lstats->rx_crc_errs);
+		stats->rx_frame_errors = u64_stats_read(&lstats->rx_sym_errs);
+		stats->rx_errors = stats->rx_crc_errors + stats->rx_frame_errors;
+
+		stats->tx_packets = u64_stats_read(&lstats->tx_packets);
+		stats->tx_bytes = u64_stats_read(&lstats->tx_bytes);
+	} while (u64_stats_fetch_retry(&lstats->syncp, start));
+}
+
+static const struct net_device_ops bcmasp_netdev_ops = {
+	.ndo_open		= bcmasp_open,
+	.ndo_stop		= bcmasp_stop,
+	.ndo_start_xmit		= bcmasp_xmit,
+	.ndo_tx_timeout		= bcmasp_tx_timeout,
+	.ndo_set_rx_mode	= bcmasp_set_rx_mode,
+	.ndo_get_phys_port_name	= bcmasp_get_phys_port_name,
+	.ndo_eth_ioctl		= phy_do_ioctl_running,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_get_stats64	= bcmasp_get_stats64,
+};
+
+static void bcmasp_map_res(struct bcmasp_priv *priv, struct bcmasp_intf *intf)
+{
+	/* Per port */
+	intf->res.umac = priv->base + UMC_OFFSET(intf);
+	intf->res.umac2fb = priv->base + (priv->hw_info->umac2fb +
+					  (intf->port * 0x4));
+	intf->res.rgmii = priv->base + RGMII_OFFSET(intf);
+
+	/* Per ch */
+	intf->tx_spb_dma = priv->base + TX_SPB_DMA_OFFSET(intf);
+	intf->res.tx_spb_ctrl = priv->base + TX_SPB_CTRL_OFFSET(intf);
+	intf->res.tx_spb_top = priv->base + TX_SPB_TOP_OFFSET(intf);
+	intf->res.tx_epkt_core = priv->base + TX_EPKT_C_OFFSET(intf);
+	intf->res.tx_pause_ctrl = priv->base + TX_PAUSE_CTRL_OFFSET(intf);
+
+	intf->rx_edpkt_dma = priv->base + RX_EDPKT_DMA_OFFSET(intf);
+	intf->rx_edpkt_cfg = priv->base + RX_EDPKT_CFG_OFFSET(intf);
+}
+
+#define MAX_IRQ_STR_LEN		64
+struct bcmasp_intf *bcmasp_interface_create(struct bcmasp_priv *priv,
+					    struct device_node *ndev_dn, int i)
+{
+	struct device *dev = &priv->pdev->dev;
+	struct bcmasp_intf *intf;
+	struct net_device *ndev;
+	int ch, port, ret;
+
+	if (of_property_read_u32(ndev_dn, "reg", &port)) {
+		dev_warn(dev, "%s: invalid port number\n", ndev_dn->name);
+		goto err;
+	}
+
+	if (of_property_read_u32(ndev_dn, "brcm,channel", &ch)) {
+		dev_warn(dev, "%s: invalid ch number\n", ndev_dn->name);
+		goto err;
+	}
+
+	ndev = alloc_etherdev(sizeof(struct bcmasp_intf));
+	if (!ndev) {
+		dev_warn(dev, "%s: unable to alloc ndev\n", ndev_dn->name);
+		goto err;
+	}
+	intf = netdev_priv(ndev);
+
+	intf->parent = priv;
+	intf->ndev = ndev;
+	intf->channel = ch;
+	intf->port = port;
+	intf->ndev_dn = ndev_dn;
+	intf->index = i;
+
+	ret = of_get_phy_mode(ndev_dn, &intf->phy_interface);
+	if (ret < 0) {
+		dev_err(dev, "invalid PHY mode property\n");
+		goto err_free_netdev;
+	}
+
+	if (intf->phy_interface == PHY_INTERFACE_MODE_INTERNAL)
+		intf->internal_phy = true;
+
+	intf->phy_dn = of_parse_phandle(ndev_dn, "phy-handle", 0);
+	if (!intf->phy_dn && of_phy_is_fixed_link(ndev_dn)) {
+		ret = of_phy_register_fixed_link(ndev_dn);
+		if (ret) {
+			dev_warn(dev, "%s: failed to register fixed PHY\n",
+				 ndev_dn->name);
+			goto err_free_netdev;
+		}
+		intf->phy_dn = ndev_dn;
+	}
+
+	/* Map resource */
+	bcmasp_map_res(priv, intf);
+
+	if ((!phy_interface_mode_is_rgmii(intf->phy_interface) &&
+	     intf->phy_interface != PHY_INTERFACE_MODE_MII &&
+	     intf->phy_interface != PHY_INTERFACE_MODE_INTERNAL) ||
+	    (intf->port != 1 && intf->internal_phy)) {
+		netdev_err(intf->ndev, "invalid PHY mode: %s for port %d\n",
+			   phy_modes(intf->phy_interface), intf->port);
+		ret = -EINVAL;
+		goto err_free_netdev;
+	}
+
+	ret = of_get_ethdev_address(ndev_dn, ndev);
+	if (ret) {
+		netdev_warn(ndev, "using random Ethernet MAC\n");
+		eth_hw_addr_random(ndev);
+	}
+
+	SET_NETDEV_DEV(ndev, dev);
+	intf->ops = &bcmasp_intf_ops;
+	ndev->netdev_ops = &bcmasp_netdev_ops;
+	ndev->ethtool_ops = &bcmasp_ethtool_ops;
+	intf->msg_enable = netif_msg_init(-1, NETIF_MSG_DRV |
+					  NETIF_MSG_PROBE |
+					  NETIF_MSG_LINK);
+	ndev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
+			  NETIF_F_RXCSUM;
+	ndev->hw_features |= ndev->features;
+	ndev->needed_headroom += sizeof(struct bcmasp_pkt_offload);
+
+	return intf;
+
+err_free_netdev:
+	free_netdev(ndev);
+err:
+	return NULL;
+}
+
+void bcmasp_interface_destroy(struct bcmasp_intf *intf)
+{
+	if (intf->ndev->reg_state == NETREG_REGISTERED)
+		unregister_netdev(intf->ndev);
+	if (of_phy_is_fixed_link(intf->ndev_dn))
+		of_phy_deregister_fixed_link(intf->ndev_dn);
+	free_netdev(intf->ndev);
+}
+
+int bcmasp_interface_suspend(struct bcmasp_intf *intf)
+{
+	struct net_device *dev = intf->ndev;
+	int ret = 0;
+
+	if (!netif_running(dev))
+		return 0;
+
+	netif_device_detach(dev);
+
+	bcmasp_netif_deinit(dev);
+
+	ret = phy_suspend(dev->phydev);
+	if (ret)
+		goto out;
+
+	if (intf->internal_phy)
+		bcmasp_ephy_enable_set(intf, false);
+	else
+		bcmasp_rgmii_mode_en_set(intf, false);
+
+	/* If Wake-on-LAN is disabled, we can safely
+	 * disable the network interface clocks.
+	 */
+	bcmasp_core_clock_set_intf(intf, false);
+
+	clk_disable_unprepare(intf->parent->clk);
+
+	return ret;
+
+out:
+	bcmasp_netif_init(dev, false);
+	return ret;
+}
+
+int bcmasp_interface_resume(struct bcmasp_intf *intf)
+{
+	struct net_device *dev = intf->ndev;
+	int ret;
+
+	if (!netif_running(dev))
+		return 0;
+
+	ret = clk_prepare_enable(intf->parent->clk);
+	if (ret)
+		return ret;
+
+	ret = bcmasp_netif_init(dev, false);
+	if (ret)
+		goto out;
+
+	netif_device_attach(dev);
+
+	return 0;
+
+out:
+	clk_disable_unprepare(intf->parent->clk);
+	return ret;
+}
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp_intf_defs.h b/drivers/net/ethernet/broadcom/asp2/bcmasp_intf_defs.h
new file mode 100644
index 000000000000..b259a475207f
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp_intf_defs.h
@@ -0,0 +1,196 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __BCMASP_INTF_DEFS_H
+#define __BCMASP_INTF_DEFS_H
+
+#define UMC_OFFSET(intf)		\
+	((((intf)->port) * 0x800) + 0xc000)
+#define  UMC_CMD			0x008
+#define   UMC_CMD_TX_EN			BIT(0)
+#define   UMC_CMD_RX_EN			BIT(1)
+#define   UMC_CMD_SPEED_SHIFT		0x2
+#define    UMC_CMD_SPEED_MASK		0x3
+#define    UMC_CMD_SPEED_10		0x0
+#define    UMC_CMD_SPEED_100		0x1
+#define    UMC_CMD_SPEED_1000		0x2
+#define    UMC_CMD_SPEED_2500		0x3
+#define   UMC_CMD_PROMISC		BIT(4)
+#define   UMC_CMD_PAD_EN		BIT(5)
+#define   UMC_CMD_CRC_FWD		BIT(6)
+#define   UMC_CMD_PAUSE_FWD		BIT(7)
+#define   UMC_CMD_RX_PAUSE_IGNORE	BIT(8)
+#define   UMC_CMD_TX_ADDR_INS		BIT(9)
+#define   UMC_CMD_HD_EN			BIT(10)
+#define   UMC_CMD_SW_RESET		BIT(13)
+#define   UMC_CMD_LCL_LOOP_EN		BIT(15)
+#define   UMC_CMD_AUTO_CONFIG		BIT(22)
+#define   UMC_CMD_CNTL_FRM_EN		BIT(23)
+#define   UMC_CMD_NO_LEN_CHK		BIT(24)
+#define   UMC_CMD_RMT_LOOP_EN		BIT(25)
+#define   UMC_CMD_PRBL_EN		BIT(27)
+#define   UMC_CMD_TX_PAUSE_IGNORE	BIT(28)
+#define   UMC_CMD_TX_RX_EN		BIT(29)
+#define   UMC_CMD_RUNT_FILTER_DIS	BIT(30)
+#define  UMC_MAC0			0x0c
+#define  UMC_MAC1			0x10
+#define  UMC_FRM_LEN			0x14
+#define  UMC_EEE_CTRL			0x64
+#define   EN_LPI_RX_PAUSE		BIT(0)
+#define   EN_LPI_TX_PFC			BIT(1)
+#define   EN_LPI_TX_PAUSE		BIT(2)
+#define   EEE_EN			BIT(3)
+#define   RX_FIFO_CHECK			BIT(4)
+#define   EEE_TX_CLK_DIS		BIT(5)
+#define   DIS_EEE_10M			BIT(6)
+#define   LP_IDLE_PREDICTION_MODE	BIT(7)
+#define  UMC_EEE_LPI_TIMER		0x68
+#define  UMC_PAUSE_CNTRL		0x330
+#define  UMC_TX_FLUSH			0x334
+#define  UMC_MIB_START			0x400
+#define  UMC_MIB_CNTRL			0x580
+#define   UMC_MIB_CNTRL_RX_CNT_RST	BIT(0)
+#define   UMC_MIB_CNTRL_RUNT_CNT_RST	BIT(1)
+#define   UMC_MIB_CNTRL_TX_CNT_RST	BIT(2)
+#define  UMC_RX_MAX_PKT_SZ		0x608
+#define  UMC_MPD_CTRL			0x620
+#define   UMC_MPD_CTRL_MPD_EN		BIT(0)
+#define   UMC_MPD_CTRL_PSW_EN		BIT(27)
+#define  UMC_PSW_MS			0x624
+#define  UMC_PSW_LS			0x628
+
+#define UMAC2FB_OFFSET_2_1		0x9f044
+#define UMAC2FB_OFFSET			0x9f03c
+#define  UMAC2FB_CFG			0x0
+#define   UMAC2FB_CFG_OPUT_EN		BIT(0)
+#define   UMAC2FB_CFG_VLAN_EN		BIT(1)
+#define   UMAC2FB_CFG_SNAP_EN		BIT(2)
+#define   UMAC2FB_CFG_BCM_TG_EN		BIT(3)
+#define   UMAC2FB_CFG_IPUT_EN		BIT(4)
+#define   UMAC2FB_CFG_CHID_SHIFT	8
+#define   UMAC2FB_CFG_OK_SEND_SHIFT	24
+#define   UMAC2FB_CFG_DEFAULT_EN	\
+		(UMAC2FB_CFG_OPUT_EN | UMAC2FB_CFG_VLAN_EN \
+		| UMAC2FB_CFG_SNAP_EN | UMAC2FB_CFG_IPUT_EN)
+
+#define RGMII_OFFSET(intf)	\
+	((((intf)->port) * 0x100) + 0xd000)
+#define  RGMII_EPHY_CNTRL		0x00
+#define    RGMII_EPHY_CFG_IDDQ_BIAS	BIT(0)
+#define    RGMII_EPHY_CFG_EXT_PWRDOWN	BIT(1)
+#define    RGMII_EPHY_CFG_FORCE_DLL_EN	BIT(2)
+#define    RGMII_EPHY_CFG_IDDQ_GLOBAL	BIT(3)
+#define    RGMII_EPHY_CK25_DIS		BIT(4)
+#define    RGMII_EPHY_RESET		BIT(7)
+#define  RGMII_OOB_CNTRL		0x0c
+#define   RGMII_LINK			BIT(4)
+#define   RGMII_OOB_DIS			BIT(5)
+#define   RGMII_MODE_EN			BIT(6)
+#define   RGMII_ID_MODE_DIS		BIT(16)
+
+#define RGMII_PORT_CNTRL		0x60
+#define   RGMII_PORT_MODE_EPHY		0
+#define   RGMII_PORT_MODE_GPHY		1
+#define   RGMII_PORT_MODE_EXT_EPHY	2
+#define   RGMII_PORT_MODE_EXT_GPHY	3
+#define   RGMII_PORT_MODE_EXT_RVMII	4
+#define   RGMII_PORT_MODE_MASK		GENMASK(2, 0)
+
+#define RGMII_SYS_LED_CNTRL		0x74
+#define  RGMII_SYS_LED_CNTRL_LINK_OVRD	BIT(15)
+
+#define TX_SPB_DMA_OFFSET(intf) \
+	((((intf)->channel) * 0x30) + 0x48180)
+#define  TX_SPB_DMA_READ		0x00
+#define  TX_SPB_DMA_BASE		0x08
+#define  TX_SPB_DMA_END			0x10
+#define  TX_SPB_DMA_VALID		0x18
+#define  TX_SPB_DMA_FIFO_CTRL		0x20
+#define   TX_SPB_DMA_FIFO_FLUSH		BIT(0)
+#define  TX_SPB_DMA_FIFO_STATUS		0x24
+
+#define TX_SPB_CTRL_OFFSET(intf) \
+	((((intf)->channel) * 0x68) + 0x49340)
+#define  TX_SPB_CTRL_ENABLE		0x0
+#define   TX_SPB_CTRL_ENABLE_EN		BIT(0)
+#define  TX_SPB_CTRL_XF_CTRL2		0x20
+#define   TX_SPB_CTRL_XF_BID_SHIFT	16
+
+#define TX_SPB_TOP_OFFSET(intf) \
+	((((intf)->channel) * 0x1c) + 0x4a0e0)
+#define TX_SPB_TOP_BLKOUT		0x0
+#define TX_SPB_TOP_SPRE_BW_CTRL		0x4
+
+#define TX_EPKT_C_OFFSET(intf) \
+	((((intf)->channel) * 0x120) + 0x40900)
+#define  TX_EPKT_C_CFG_MISC		0x0
+#define   TX_EPKT_C_CFG_MISC_EN		BIT(0)
+#define   TX_EPKT_C_CFG_MISC_PT		BIT(1)
+#define   TX_EPKT_C_CFG_MISC_PS_SHIFT	14
+#define   TX_EPKT_C_CFG_MISC_FD_SHIFT	20
+
+#define TX_PAUSE_CTRL_OFFSET(intf) \
+	((((intf)->channel * 0xc) + 0x49a20))
+#define  TX_PAUSE_MAP_VECTOR		0x8
+
+#define RX_EDPKT_DMA_OFFSET(intf) \
+	((((intf)->channel) * 0x38) + 0x9ca00)
+#define  RX_EDPKT_DMA_WRITE		0x00
+#define  RX_EDPKT_DMA_READ		0x08
+#define  RX_EDPKT_DMA_BASE		0x10
+#define  RX_EDPKT_DMA_END		0x18
+#define  RX_EDPKT_DMA_VALID		0x20
+#define  RX_EDPKT_DMA_FULLNESS		0x28
+#define  RX_EDPKT_DMA_MIN_THRES		0x2c
+#define  RX_EDPKT_DMA_CH_XONOFF		0x30
+
+#define RX_EDPKT_CFG_OFFSET(intf) \
+	((((intf)->channel) * 0x70) + 0x9c600)
+#define  RX_EDPKT_CFG_CFG0		0x0
+#define   RX_EDPKT_CFG_CFG0_DBUF_SHIFT	9
+#define    RX_EDPKT_CFG_CFG0_RBUF	0x0
+#define    RX_EDPKT_CFG_CFG0_RBUF_4K	0x1
+#define    RX_EDPKT_CFG_CFG0_BUF_4K	0x2
+/* EFRM STUFF, 0 = no byte stuff, 1 = two byte stuff */
+#define   RX_EDPKT_CFG_CFG0_EFRM_STUF	BIT(11)
+#define   RX_EDPKT_CFG_CFG0_BALN_SHIFT	12
+#define    RX_EDPKT_CFG_CFG0_NO_ALN	0
+#define    RX_EDPKT_CFG_CFG0_4_ALN	2
+#define    RX_EDPKT_CFG_CFG0_64_ALN	6
+#define  RX_EDPKT_RING_BUFFER_WRITE	0x38
+#define  RX_EDPKT_RING_BUFFER_READ	0x40
+#define  RX_EDPKT_RING_BUFFER_BASE	0x48
+#define  RX_EDPKT_RING_BUFFER_END	0x50
+#define  RX_EDPKT_RING_BUFFER_VALID	0x58
+#define  RX_EDPKT_CFG_ENABLE		0x6c
+#define   RX_EDPKT_CFG_ENABLE_EN	BIT(0)
+
+#define RX_SPB_DMA_OFFSET(intf) \
+	((((intf)->channel) * 0x30) + 0xa0000)
+#define  RX_SPB_DMA_READ		0x00
+#define  RX_SPB_DMA_BASE		0x08
+#define  RX_SPB_DMA_END			0x10
+#define  RX_SPB_DMA_VALID		0x18
+#define  RX_SPB_DMA_FIFO_CTRL		0x20
+#define   RX_SPB_DMA_FIFO_FLUSH		BIT(0)
+#define  RX_SPB_DMA_FIFO_STATUS		0x24
+
+#define RX_SPB_CTRL_OFFSET(intf) \
+	((((intf)->channel - 6) * 0x68) + 0xa1000)
+#define  RX_SPB_CTRL_ENABLE		0x00
+#define   RX_SPB_CTRL_ENABLE_EN		BIT(0)
+
+#define RX_PAUSE_CTRL_OFFSET(intf) \
+	((((intf)->channel - 6) * 0x4) + 0xa1138)
+#define  RX_PAUSE_MAP_VECTOR		0x00
+
+#define RX_SPB_TOP_CTRL_OFFSET(intf) \
+	((((intf)->channel - 6) * 0x14) + 0xa2000)
+#define  RX_SPB_TOP_BLKOUT		0x00
+
+#define NUM_4K_BUFFERS			32
+#define RING_BUFFER_SIZE		(PAGE_SIZE * NUM_4K_BUFFERS)
+
+#define DESC_RING_COUNT			(64 * NUM_4K_BUFFERS)
+#define DESC_SIZE			16
+#define DESC_RING_SIZE			(DESC_RING_COUNT * DESC_SIZE)
+
+#endif